diff --git a/models/db/search.go b/models/db/search.go
index e0a1b6bde9ffd..6e82be6709154 100644
--- a/models/db/search.go
+++ b/models/db/search.go
@@ -30,6 +30,11 @@ const (
 // eg: "milestone_id=-1" means "find the items without any milestone.
 const NoConditionID int64 = -1
 
+// AnyConditionID means a condition to filter the records which match any id.
+// The inverse of the above NoConditionID
+// eg: "assignee_id=-1000001" means "find the issues with an assignee"
+const AnyConditionID int64 = -1000001
+
 // NonExistingID means a condition to match no result (eg: a non-existing user)
 // It doesn't use -1 or -2 because they are used as builtin users.
 const NonExistingID int64 = -1000000
diff --git a/models/issues/issue_search.go b/models/issues/issue_search.go
index 694b918755dda..d788527f89837 100644
--- a/models/issues/issue_search.go
+++ b/models/issues/issue_search.go
@@ -363,6 +363,8 @@ func applyAssigneeCondition(sess *xorm.Session, assigneeID optional.Option[int64
 	}
 	if assigneeID.Value() == db.NoConditionID {
 		sess.Where("issue.id NOT IN (SELECT issue_id FROM issue_assignees)")
+	} else if assigneeID.Value() == db.AnyConditionID {
+		sess.Where("issue.id IN (SELECT issue_id FROM issue_assignees)")
 	} else {
 		sess.Join("INNER", "issue_assignees", "issue.id = issue_assignees.issue_id").
 			And("issue_assignees.assignee_id = ?", assigneeID.Value())
diff --git a/modules/indexer/issues/bleve/bleve.go b/modules/indexer/issues/bleve/bleve.go
index bf51bd6c14857..8d2c4f34952e6 100644
--- a/modules/indexer/issues/bleve/bleve.go
+++ b/modules/indexer/issues/bleve/bleve.go
@@ -9,6 +9,7 @@ import (
 	indexer_internal "code.gitea.io/gitea/modules/indexer/internal"
 	inner_bleve "code.gitea.io/gitea/modules/indexer/internal/bleve"
 	"code.gitea.io/gitea/modules/indexer/issues/internal"
+	"code.gitea.io/gitea/modules/optional"
 
 	"github.com/blevesearch/bleve/v2"
 	"github.com/blevesearch/bleve/v2/analysis/analyzer/custom"
@@ -236,7 +237,9 @@ func (b *Indexer) Search(ctx context.Context, options *internal.SearchOptions) (
 		queries = append(queries, inner_bleve.NumericEqualityQuery(options.PosterID.Value(), "poster_id"))
 	}
 
-	if options.AssigneeID.Has() {
+	if options.AnyAssigneeOnly {
+		queries = append(queries, inner_bleve.NumericRangeInclusiveQuery(optional.Some[int64](1), optional.None[int64](), "assignee_id"))
+	} else if options.AssigneeID.Has() {
 		queries = append(queries, inner_bleve.NumericEqualityQuery(options.AssigneeID.Value(), "assignee_id"))
 	}
 
diff --git a/modules/indexer/issues/db/options.go b/modules/indexer/issues/db/options.go
index 87ce398a202d0..ac9f034ed5ce2 100644
--- a/modules/indexer/issues/db/options.go
+++ b/modules/indexer/issues/db/options.go
@@ -49,12 +49,17 @@ func ToDBOptions(ctx context.Context, options *internal.SearchOptions) (*issue_m
 		return value
 	}
 
+	assigneeID := optional.Some(convertID(options.AssigneeID))
+	if options.AnyAssigneeOnly {
+		assigneeID = optional.Some(db.AnyConditionID)
+	}
+
 	opts := &issue_model.IssuesOptions{
 		Paginator:          options.Paginator,
 		RepoIDs:            options.RepoIDs,
 		AllPublic:          options.AllPublic,
 		RepoCond:           nil,
-		AssigneeID:         optional.Some(convertID(options.AssigneeID)),
+		AssigneeID:         assigneeID,
 		PosterID:           options.PosterID,
 		MentionedID:        convertID(options.MentionID),
 		ReviewRequestedID:  convertID(options.ReviewRequestedID),
diff --git a/modules/indexer/issues/dboptions.go b/modules/indexer/issues/dboptions.go
index 4f6ad96d222d7..701e18af67329 100644
--- a/modules/indexer/issues/dboptions.go
+++ b/modules/indexer/issues/dboptions.go
@@ -47,6 +47,8 @@ func ToSearchOptions(keyword string, opts *issues_model.IssuesOptions) *SearchOp
 
 	if opts.AssigneeID.Value() == db.NoConditionID {
 		searchOpt.AssigneeID = optional.Some[int64](0) // FIXME: this is inconsistent from other places, 0 means "no assignee"
+	} else if opts.AssigneeID.Value() == db.AnyConditionID {
+		searchOpt.AnyAssigneeOnly = true
 	} else if opts.AssigneeID.Value() != 0 {
 		searchOpt.AssigneeID = opts.AssigneeID
 	}
diff --git a/modules/indexer/issues/elasticsearch/elasticsearch.go b/modules/indexer/issues/elasticsearch/elasticsearch.go
index 4c293f3f2a9c8..69f5e18c5f7ce 100644
--- a/modules/indexer/issues/elasticsearch/elasticsearch.go
+++ b/modules/indexer/issues/elasticsearch/elasticsearch.go
@@ -209,7 +209,11 @@ func (b *Indexer) Search(ctx context.Context, options *internal.SearchOptions) (
 		query.Must(elastic.NewTermQuery("poster_id", options.PosterID.Value()))
 	}
 
-	if options.AssigneeID.Has() {
+	if options.AnyAssigneeOnly {
+		q := elastic.NewRangeQuery("assignee_id")
+		q.Gte(1)
+		query.Must(q)
+	} else if options.AssigneeID.Has() {
 		query.Must(elastic.NewTermQuery("assignee_id", options.AssigneeID.Value()))
 	}
 
diff --git a/modules/indexer/issues/indexer_test.go b/modules/indexer/issues/indexer_test.go
index 7def2a2c6e5b9..e1dbd793b5a57 100644
--- a/modules/indexer/issues/indexer_test.go
+++ b/modules/indexer/issues/indexer_test.go
@@ -44,6 +44,7 @@ func TestDBSearchIssues(t *testing.T) {
 	t.Run("search issues with order", searchIssueWithOrder)
 	t.Run("search issues in project", searchIssueInProject)
 	t.Run("search issues with paginator", searchIssueWithPaginator)
+	t.Run("search issues with any assignee", searchIssueWithAnyAssignee)
 }
 
 func searchIssueWithKeyword(t *testing.T) {
@@ -460,3 +461,25 @@ func searchIssueWithPaginator(t *testing.T) {
 		assert.Equal(t, test.expectedTotal, total)
 	}
 }
+
+func searchIssueWithAnyAssignee(t *testing.T) {
+	tests := []struct {
+		opts          SearchOptions
+		expectedIDs   []int64
+		expectedTotal int64
+	}{
+		{
+			SearchOptions{
+				AnyAssigneeOnly: true,
+			},
+			[]int64{17, 6, 1},
+			3,
+		},
+	}
+	for _, test := range tests {
+		issueIDs, total, err := SearchIssues(t.Context(), &test.opts)
+		require.NoError(t, err)
+		assert.Equal(t, test.expectedIDs, issueIDs)
+		assert.Equal(t, test.expectedTotal, total)
+	}
+}
diff --git a/modules/indexer/issues/internal/model.go b/modules/indexer/issues/internal/model.go
index 09dcbf4804c88..1c9e3531cd917 100644
--- a/modules/indexer/issues/internal/model.go
+++ b/modules/indexer/issues/internal/model.go
@@ -98,7 +98,8 @@ type SearchOptions struct {
 
 	PosterID optional.Option[int64] // poster of the issues
 
-	AssigneeID optional.Option[int64] // assignee of the issues, zero means no assignee
+	AssigneeID      optional.Option[int64] // assignee of the issues, zero means no assignee
+	AnyAssigneeOnly bool                   // if the issues have any assignee (non-zero), if true, AssigneeID will be ignored
 
 	MentionID optional.Option[int64] // mentioned user of the issues
 
diff --git a/modules/indexer/issues/internal/tests/tests.go b/modules/indexer/issues/internal/tests/tests.go
index 0483853dfd19e..af23ec4e46fef 100644
--- a/modules/indexer/issues/internal/tests/tests.go
+++ b/modules/indexer/issues/internal/tests/tests.go
@@ -647,6 +647,21 @@ var cases = []*testIndexerCase{
 			}
 		},
 	},
+	{
+		Name: "SearchAnyAssignee",
+		SearchOptions: &internal.SearchOptions{
+			AnyAssigneeOnly: true,
+		},
+		Expected: func(t *testing.T, data map[int64]*internal.IndexerData, result *internal.SearchResult) {
+			assert.Len(t, result.Hits, 180)
+			for _, v := range result.Hits {
+				assert.GreaterOrEqual(t, data[v.ID].AssigneeID, int64(1))
+			}
+			assert.Equal(t, countIndexerData(data, func(v *internal.IndexerData) bool {
+				return v.AssigneeID >= 1
+			}), result.Total)
+		},
+	},
 }
 
 type testIndexerCase struct {
diff --git a/modules/indexer/issues/meilisearch/meilisearch.go b/modules/indexer/issues/meilisearch/meilisearch.go
index 1066e96272575..b0c88933cbaf5 100644
--- a/modules/indexer/issues/meilisearch/meilisearch.go
+++ b/modules/indexer/issues/meilisearch/meilisearch.go
@@ -186,7 +186,9 @@ func (b *Indexer) Search(ctx context.Context, options *internal.SearchOptions) (
 		query.And(inner_meilisearch.NewFilterEq("poster_id", options.PosterID.Value()))
 	}
 
-	if options.AssigneeID.Has() {
+	if options.AnyAssigneeOnly {
+		query.And(inner_meilisearch.NewFilterGte("assignee_id", 1))
+	} else if options.AssigneeID.Has() {
 		query.And(inner_meilisearch.NewFilterEq("assignee_id", options.AssigneeID.Value()))
 	}
 
diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index c2c5b07b653af..02680c1fac16e 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -1542,6 +1542,7 @@ issues.filter_project_none = No project
 issues.filter_assignee = Assignee
 issues.filter_assginee_no_select = All assignees
 issues.filter_assginee_no_assignee = No assignee
+issues.filter_assignee_any_assignee = Any assignee
 issues.filter_poster = Author
 issues.filter_user_placeholder = Search users
 issues.filter_user_no_select = All users
diff --git a/templates/repo/issue/filter_item_user_assign.tmpl b/templates/repo/issue/filter_item_user_assign.tmpl
index 4f1db71d57f0a..028a0bfca5a93 100644
--- a/templates/repo/issue/filter_item_user_assign.tmpl
+++ b/templates/repo/issue/filter_item_user_assign.tmpl
@@ -6,6 +6,7 @@
 * TextFilterTitle
 * TextZeroValue: the text for "all issues"
 * TextNegativeOne: the text for "issues with no assignee"
+* TextAnyCondition: the text for "issues with any assignee"
 */}}
 {{$queryLink := .QueryLink}}
 <div class="item ui dropdown jump {{if not .UserSearchList}}disabled{{end}}">
@@ -21,6 +22,9 @@
 		{{if $.TextNegativeOne}}
 			<a class="item {{if eq .SelectedUserId -1}}selected{{end}}" href="{{QueryBuild $queryLink $.QueryParamKey -1}}">{{$.TextNegativeOne}}</a>
 		{{end}}
+		{{if $.TextAnyCondition}}
+			<a class="item {{if eq .SelectedUserId -1000001}}selected{{end}}" href="{{QueryBuild $queryLink $.QueryParamKey -1000001}}">{{$.TextAnyCondition}}</a>
+		{{end}}
 		<div class="divider"></div>
 		{{range .UserSearchList}}
 			<a class="item {{if eq $.SelectedUserId .ID}}selected{{end}}" href="{{QueryBuild $queryLink $.QueryParamKey .ID}}">
diff --git a/templates/repo/issue/filter_list.tmpl b/templates/repo/issue/filter_list.tmpl
index 7612d93b2128f..ce45b5d9b6ec4 100644
--- a/templates/repo/issue/filter_list.tmpl
+++ b/templates/repo/issue/filter_list.tmpl
@@ -96,6 +96,7 @@
 	"TextFilterTitle" (ctx.Locale.Tr "repo.issues.filter_assignee")
 	"TextZeroValue" (ctx.Locale.Tr "repo.issues.filter_assginee_no_select")
 	"TextNegativeOne" (ctx.Locale.Tr "repo.issues.filter_assginee_no_assignee")
+	"TextAnyCondition" (ctx.Locale.Tr "repo.issues.filter_assignee_any_assignee")
 }}
 
 {{if .IsSigned}}