diff --git a/docs-master/Config.md b/docs-master/Config.md
index 857a4e359..10454cd4a 100644
--- a/docs-master/Config.md
+++ b/docs-master/Config.md
@@ -809,6 +809,7 @@ keybinding:
     resetAuthor: a
     setAuthor: A
     addCoAuthor: c
+    signOff: s
   stash:
     popStash: g
     renameStash: r
diff --git a/docs-master/keybindings/Keybindings_en.md b/docs-master/keybindings/Keybindings_en.md
index 3ec731bf2..0cc9759b0 100644
--- a/docs-master/keybindings/Keybindings_en.md
+++ b/docs-master/keybindings/Keybindings_en.md
@@ -102,7 +102,7 @@ _This file is auto-generated. To update, make the changes in the pkg/i18n direct
 | `` V `` | Paste (cherry-pick) |  |
 | `` B `` | Mark as base commit for rebase | Select a base commit for the next rebase. When you rebase onto a branch, only commits above the base commit will be brought across. This uses the `git rebase --onto` command. |
 | `` A `` | Amend | Amend commit with staged changes. If the selected commit is the HEAD commit, this will perform `git commit --amend`. Otherwise the commit will be amended via a rebase. |
-| `` a `` | Amend commit attribute | Set/Reset commit author or set co-author. |
+| `` a `` | Amend commit attribute | Set/Reset commit author, set co-author, or sign off the commit. |
 | `` t `` | Revert | Create a revert commit for the selected commit, which applies the selected commit's changes in reverse. |
 | `` T `` | Tag commit | Create a new tag pointing at the selected commit. You'll be prompted to enter a tag name and optional description. |
 | `` <ctrl+l> `` | View log options | View options for commit log e.g. changing sort order, hiding the git graph, showing the whole git graph. |
diff --git a/docs-master/keybindings/Keybindings_ko.md b/docs-master/keybindings/Keybindings_ko.md
index a0e5d84dc..ca35d3f2a 100644
--- a/docs-master/keybindings/Keybindings_ko.md
+++ b/docs-master/keybindings/Keybindings_ko.md
@@ -313,7 +313,7 @@ _This file is auto-generated. To update, make the changes in the pkg/i18n direct
 | `` V `` | 커밋을 붙여넣기 (cherry-pick) |  |
 | `` B `` | Mark as base commit for rebase | Select a base commit for the next rebase. When you rebase onto a branch, only commits above the base commit will be brought across. This uses the `git rebase --onto` command. |
 | `` A `` | Amend | Amend commit with staged changes |
-| `` a `` | Amend commit attribute | Set/Reset commit author or set co-author. |
+| `` a `` | Amend commit attribute | Set/Reset commit author, set co-author, or sign off the commit. |
 | `` t `` | Revert | Create a revert commit for the selected commit, which applies the selected commit's changes in reverse. |
 | `` T `` | Tag commit | Create a new tag pointing at the selected commit. You'll be prompted to enter a tag name and optional description. |
 | `` <ctrl+l> `` | 로그 메뉴 열기 | View options for commit log e.g. changing sort order, hiding the git graph, showing the whole git graph. |
diff --git a/docs-master/keybindings/Keybindings_nl.md b/docs-master/keybindings/Keybindings_nl.md
index 7d95e72dd..78baa081d 100644
--- a/docs-master/keybindings/Keybindings_nl.md
+++ b/docs-master/keybindings/Keybindings_nl.md
@@ -174,7 +174,7 @@ _This file is auto-generated. To update, make the changes in the pkg/i18n direct
 | `` V `` | Plak commits (cherry-pick) |  |
 | `` B `` | Markeer als basiscommit voor rebase | Selecteer een basiscommit voor de volgende rebase. Als je rebased op een branch worden alleen commits boven de basiscommit meegenomen. Hiervoor wordt het `git rebase --onto` commando gebruikt. |
 | `` A `` | Amend | Wijzig commit met staged veranderingen |
-| `` a `` | Amend commit attribute | Set/Reset commit author or set co-author. |
+| `` a `` | Amend commit attribute | Set/Reset commit author, set co-author, or sign off the commit. |
 | `` t `` | Revert | Maak een revert commit voor de geselecteerde commit, die de wijzigingen in deze commit terugdraait. |
 | `` T `` | Tag commit | Maak een nieuwe tag die naar de geselecteerde commit wijst. Je wordt gevraagd om een tag naam en optionele omschrijving. |
 | `` <ctrl+l> `` | Log opties weergeven | View options for commit log e.g. changing sort order, hiding the git graph, showing the whole git graph. |
diff --git a/docs-master/keybindings/Keybindings_ru.md b/docs-master/keybindings/Keybindings_ru.md
index 3d03f9ca6..f686d7420 100644
--- a/docs-master/keybindings/Keybindings_ru.md
+++ b/docs-master/keybindings/Keybindings_ru.md
@@ -184,7 +184,7 @@ _This file is auto-generated. To update, make the changes in the pkg/i18n direct
 | `` V `` | Вставить отобранные коммиты (cherry-pick) |  |
 | `` B `` | Mark as base commit for rebase | Select a base commit for the next rebase. When you rebase onto a branch, only commits above the base commit will be brought across. This uses the `git rebase --onto` command. |
 | `` A `` | Amend | Править последний коммит с проиндексированными изменениями |
-| `` a `` | Установить/убрать автора коммита | Set/Reset commit author or set co-author. |
+| `` a `` | Установить/убрать автора коммита | Set/Reset commit author, set co-author, or sign off the commit. |
 | `` t `` | Revert | Create a revert commit for the selected commit, which applies the selected commit's changes in reverse. |
 | `` T `` | Пометить коммит тегом | Create a new tag pointing at the selected commit. You'll be prompted to enter a tag name and optional description. |
 | `` <ctrl+l> `` | Открыть меню журнала | View options for commit log e.g. changing sort order, hiding the git graph, showing the whole git graph. |
diff --git a/docs-master/keybindings/Keybindings_zh-TW.md b/docs-master/keybindings/Keybindings_zh-TW.md
index 1706a627e..40b95f765 100644
--- a/docs-master/keybindings/Keybindings_zh-TW.md
+++ b/docs-master/keybindings/Keybindings_zh-TW.md
@@ -198,7 +198,7 @@ _This file is auto-generated. To update, make the changes in the pkg/i18n direct
 | `` V `` | 貼上提交 (揀選) |  |
 | `` B `` | 為了變基已標注提交為基準提交 | 請為了下一次變基選擇一項基準提交；此將執行 `git rebase --onto`。 |
 | `` A `` | 修改 | 使用已預存的更改修正提交 |
-| `` a `` | 設定/重設提交作者 | Set/Reset commit author or set co-author. |
+| `` a `` | 設定/重設提交作者 | Set/Reset commit author, set co-author, or sign off the commit. |
 | `` t `` | 還原 | Create a revert commit for the selected commit, which applies the selected commit's changes in reverse. |
 | `` T `` | 打標籤到提交 | Create a new tag pointing at the selected commit. You'll be prompted to enter a tag name and optional description. |
 | `` <ctrl+l> `` | 開啟記錄選單 | View options for commit log e.g. changing sort order, hiding the git graph, showing the whole git graph. |
diff --git a/pkg/commands/git_commands/commit.go b/pkg/commands/git_commands/commit.go
index d067e9831..271caea08 100644
--- a/pkg/commands/git_commands/commit.go
+++ b/pkg/commands/git_commands/commit.go
@@ -29,6 +29,15 @@ func (self *CommitCommands) ResetAuthor() error {
 	return self.cmd.New(cmdArgs).Run()
 }
 
+// Adds a Signed-off-by trailer to the topmost commit
+func (self *CommitCommands) SignOff() error {
+	cmdArgs := NewGitCmd("commit").
+		Arg("--allow-empty", "--allow-empty-message", "--only", "--no-edit", "--amend", "--signoff").
+		ToArgv()
+
+	return self.cmd.New(cmdArgs).Run()
+}
+
 // Sets the commit's author to the supplied value. Value is expected to be of the form 'Name <Email>'
 func (self *CommitCommands) SetAuthor(value string) error {
 	cmdArgs := NewGitCmd("commit").
diff --git a/pkg/commands/git_commands/rebase.go b/pkg/commands/git_commands/rebase.go
index 74278b18d..d8363eeb9 100644
--- a/pkg/commands/git_commands/rebase.go
+++ b/pkg/commands/git_commands/rebase.go
@@ -80,6 +80,12 @@ func (self *RebaseCommands) SetCommitAuthor(commits []*models.Commit, start, end
 	})
 }
 
+func (self *RebaseCommands) SignOffCommit(commits []*models.Commit, start, end int) error {
+	return self.GenericAmend(commits, start, end, func(_ *models.Commit) error {
+		return self.commit.SignOff()
+	})
+}
+
 func (self *RebaseCommands) AddCommitCoAuthor(commits []*models.Commit, start, end int, value string) error {
 	return self.GenericAmend(commits, start, end, func(commit *models.Commit) error {
 		return self.commit.AddCoAuthor(commit.Hash(), value)
diff --git a/pkg/config/user_config.go b/pkg/config/user_config.go
index 9738186d9..5361f8682 100644
--- a/pkg/config/user_config.go
+++ b/pkg/config/user_config.go
@@ -646,6 +646,7 @@ type KeybindingAmendAttributeConfig struct {
 	ResetAuthor Keybinding `yaml:"resetAuthor"`
 	SetAuthor   Keybinding `yaml:"setAuthor"`
 	AddCoAuthor Keybinding `yaml:"addCoAuthor"`
+	SignOff     Keybinding `yaml:"signOff"`
 }
 
 type KeybindingStashConfig struct {
@@ -1159,6 +1160,7 @@ func GetDefaultConfigForPlatform(platform string) *UserConfig {
 				ResetAuthor: Keybinding{"a"},
 				SetAuthor:   Keybinding{"A"},
 				AddCoAuthor: Keybinding{"c"},
+				SignOff:     Keybinding{"s"},
 			},
 			Stash: KeybindingStashConfig{
 				PopStash:    Keybinding{"g"},
diff --git a/pkg/gui/controllers/local_commits_controller.go b/pkg/gui/controllers/local_commits_controller.go
index 1e1a01427..328ebc869 100644
--- a/pkg/gui/controllers/local_commits_controller.go
+++ b/pkg/gui/controllers/local_commits_controller.go
@@ -1301,10 +1301,31 @@ func (self *LocalCommitsController) amendAttribute(_ []*models.Commit, start, en
 				Keys:    opts.GetKeys(opts.Config.AmendAttribute.AddCoAuthor),
 				Tooltip: self.c.Tr.AddCoAuthorTooltip,
 			},
+			{
+				Label:   self.c.Tr.SignOffCommit,
+				OnPress: func() error { return self.signOffCommit(commits, start, end) },
+				Keys:    opts.GetKeys(opts.Config.AmendAttribute.SignOff),
+				Tooltip: self.c.Tr.SignOffCommitTooltip,
+			},
 		},
 	})
 }
 
+func (self *LocalCommitsController) signOffCommit(commits []*models.Commit, start, end int) error {
+	return self.c.WithWaitingStatusBlockingInput(types.WaitingStatusOpts{
+		Message:              self.c.Tr.AmendingStatus,
+		HideWorkingTreeState: true,
+	}, func(gocui.Task) error {
+		self.c.LogAction(self.c.Tr.Actions.SignOffCommit)
+		if err := self.c.Git().Rebase.SignOffCommit(commits, start, end); err != nil {
+			return err
+		}
+
+		self.c.RefreshFromWorker(types.RefreshOptions{})
+		return nil
+	})
+}
+
 func (self *LocalCommitsController) resetAuthor(commits []*models.Commit, start, end int) error {
 	return self.c.WithWaitingStatusBlockingInput(types.WaitingStatusOpts{
 		Message:              self.c.Tr.AmendingStatus,
diff --git a/pkg/i18n/english.go b/pkg/i18n/english.go
index 9c72b53df..beb65c1eb 100644
--- a/pkg/i18n/english.go
+++ b/pkg/i18n/english.go
@@ -197,6 +197,8 @@ type TranslationSet struct {
 	ResetAuthorTooltip                    string
 	SetAuthor                             string
 	SetAuthorTooltip                      string
+	SignOffCommit                         string
+	SignOffCommitTooltip                  string
 	AddCoAuthor                           string
 	AmendCommitAttribute                  string
 	AmendCommitAttributeTooltip           string
@@ -1037,6 +1039,7 @@ type Actions struct {
 	ResetCommitAuthor                string
 	SetCommitAuthor                  string
 	AddCommitCoAuthor                string
+	SignOffCommit                    string
 	RevertCommit                     string
 	CreateFixupCommit                string
 	SquashAllAboveFixupCommits       string
@@ -1355,9 +1358,11 @@ func EnglishTranslationSet() *TranslationSet {
 		ResetAuthorTooltip:                   "Reset the commit's author to the currently configured user. This will also renew the author timestamp",
 		SetAuthor:                            "Set author",
 		SetAuthorTooltip:                     "Set the author based on a prompt",
+		SignOffCommit:                        "Sign off",
+		SignOffCommitTooltip:                 "Add a Signed-off-by trailer to the commit.",
 		AddCoAuthor:                          "Add co-author",
 		AmendCommitAttribute:                 "Amend commit attribute",
-		AmendCommitAttributeTooltip:          "Set/Reset commit author or set co-author.",
+		AmendCommitAttributeTooltip:          "Set/Reset commit author, set co-author, or sign off the commit.",
 		SetAuthorPromptTitle:                 "Set author (must look like 'Name <Email>')",
 		AddCoAuthorPromptTitle:               "Add co-author (must look like 'Name <Email>')",
 		AddCoAuthorTooltip:                   "Add co-author using the Github/Gitlab metadata Co-authored-by.",
@@ -2154,6 +2159,7 @@ func EnglishTranslationSet() *TranslationSet {
 			ResetCommitAuthor:                "Reset commit author",
 			SetCommitAuthor:                  "Set commit author",
 			AddCommitCoAuthor:                "Add commit co-author",
+			SignOffCommit:                    "Sign off commit",
 			RevertCommit:                     "Revert commit",
 			CreateFixupCommit:                "Create fixup commit",
 			SquashAllAboveFixupCommits:       "Squash all above fixup commits",
diff --git a/pkg/integration/tests/commit/sign_off.go b/pkg/integration/tests/commit/sign_off.go
new file mode 100644
index 000000000..f19d0c99f
--- /dev/null
+++ b/pkg/integration/tests/commit/sign_off.go
@@ -0,0 +1,36 @@
+package commit
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var SignOff = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Sign off a commit",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	SetupConfig:  func(config *config.AppConfig) {},
+	SetupRepo: func(shell *Shell) {
+		shell.EmptyCommit("initial commit")
+	},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		t.Views().Commits().
+			Focus().
+			Lines(
+				Contains("initial commit").IsSelected(),
+			).
+			Press(keys.Commits.ResetCommitAuthor).
+			Tap(func() {
+				t.ExpectPopup().Menu().
+					Title(Equals("Amend commit attribute")).
+					Select(Contains("Sign off")).
+					Confirm()
+			})
+
+		t.Views().Main().ContainsLines(
+			Equals("    initial commit"),
+			Equals("    "),
+			Equals("    Signed-off-by: CI <CI@example.com>"),
+		)
+	},
+})
diff --git a/pkg/integration/tests/commit/sign_off_range.go b/pkg/integration/tests/commit/sign_off_range.go
new file mode 100644
index 000000000..707c143a2
--- /dev/null
+++ b/pkg/integration/tests/commit/sign_off_range.go
@@ -0,0 +1,83 @@
+package commit
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var SignOffRange = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Sign off a range of commits",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	SetupConfig:  func(config *config.AppConfig) {},
+	SetupRepo: func(shell *Shell) {
+		shell.EmptyCommit("fourth commit")
+		shell.EmptyCommit("third commit")
+		shell.EmptyCommit("second commit")
+		shell.EmptyCommit("first commit")
+	},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		t.Views().Commits().
+			Focus().
+			Lines(
+				Contains("first commit").IsSelected(),
+				Contains("second commit"),
+				Contains("third commit"),
+				Contains("fourth commit"),
+			).
+			SelectNextItem().
+			Press(keys.Universal.ToggleRangeSelect).
+			SelectNextItem().
+			SelectedLines(
+				Contains("second commit"),
+				Contains("third commit"),
+			).
+			Press(keys.Commits.ResetCommitAuthor).
+			Tap(func() {
+				t.ExpectPopup().Menu().
+					Title(Equals("Amend commit attribute")).
+					Select(Contains("Sign off")).
+					Confirm()
+			}).
+			PressEscape().
+			SelectNextItem().
+			SelectedLine(Contains("fourth commit"))
+
+		t.Views().Main().Content(
+			Contains("fourth commit").
+				DoesNotContain("Signed-off-by: CI <CI@example.com>"),
+		)
+
+		t.Views().Commits().
+			IsFocused().
+			SelectPreviousItem().
+			SelectedLine(Contains("third commit"))
+
+		t.Views().Main().ContainsLines(
+			Equals("    third commit"),
+			Equals("    "),
+			Equals("    Signed-off-by: CI <CI@example.com>"),
+		)
+
+		t.Views().Commits().
+			IsFocused().
+			SelectPreviousItem().
+			SelectedLine(Contains("second commit"))
+
+		t.Views().Main().ContainsLines(
+			Equals("    second commit"),
+			Equals("    "),
+			Equals("    Signed-off-by: CI <CI@example.com>"),
+		)
+
+		t.Views().Commits().
+			IsFocused().
+			SelectPreviousItem().
+			SelectedLine(Contains("first commit"))
+
+		t.Views().Main().Content(
+			Contains("first commit").
+				DoesNotContain("Signed-off-by: CI <CI@example.com>"),
+		)
+	},
+})
diff --git a/pkg/integration/tests/test_list.go b/pkg/integration/tests/test_list.go
index 0d25ddba6..686ec21fd 100644
--- a/pkg/integration/tests/test_list.go
+++ b/pkg/integration/tests/test_list.go
@@ -158,6 +158,8 @@ var tests = []*components.IntegrationTest{
 	commit.Search,
 	commit.SetAuthor,
 	commit.SetAuthorRange,
+	commit.SignOff,
+	commit.SignOffRange,
 	commit.StageRangeOfLines,
 	commit.Staged,
 	commit.StagedWithoutHooks,
diff --git a/schema-master/config.json b/schema-master/config.json
index 45a2b9efe..7b79438e6 100644
--- a/schema-master/config.json
+++ b/schema-master/config.json
@@ -986,6 +986,20 @@
             }
           ],
           "default": "c"
+        },
+        "signOff": {
+          "oneOf": [
+            {
+              "type": "string"
+            },
+            {
+              "items": {
+                "type": "string"
+              },
+              "type": "array"
+            }
+          ],
+          "default": "s"
         }
       },
       "additionalProperties": false,