diff --git a/models/git/branch.go b/models/git/branch.go
index bc6e2a1748..30d517a06d 100644
--- a/models/git/branch.go
+++ b/models/git/branch.go
@@ -583,3 +583,12 @@ func FindRecentlyPushedNewBranches(ctx context.Context, doer *user_model.User, o
 
 	return newBranches, nil
 }
+
+// CountBranches returns the number of branches in the repository
+func CountBranches(ctx context.Context, repoID int64, includeDeleted bool) (int64, error) {
+	sess := db.GetEngine(ctx).Where("repo_id=?", repoID)
+	if !includeDeleted {
+		sess.And("is_deleted=?", false)
+	}
+	return sess.Count(new(Branch))
+}
diff --git a/models/git/branch_test.go b/models/git/branch_test.go
index 9e6148946d..b9b761fd5f 100644
--- a/models/git/branch_test.go
+++ b/models/git/branch_test.go
@@ -263,3 +263,25 @@ func TestOnlyGetDeletedBranchOnCorrectRepo(t *testing.T) {
 	assert.NoError(t, err)
 	assert.NotNil(t, deletedBranch)
 }
+
+func TestCountBranches(t *testing.T) {
+	// 1. Setup - Exactly like TestAddDeletedBranch
+	assert.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+
+	// 2. Execution - Using t.Context() to match the rest of the file
+	initialCount, err := git_model.CountBranches(t.Context(), repo.ID, false)
+	assert.NoError(t, err)
+
+	// 3. Database Action - Using t.Context()
+	err = db.Insert(t.Context(), &git_model.Branch{
+		RepoID: repo.ID,
+		Name:   "test-branch-for-counting",
+	})
+	assert.NoError(t, err)
+
+	// 4. Verification
+	newCount, err := git_model.CountBranches(t.Context(), repo.ID, false)
+	assert.NoError(t, err)
+	assert.Equal(t, initialCount+1, newCount)
+}
diff --git a/modules/structs/repo.go b/modules/structs/repo.go
index a08cf36037..3507cc410a 100644
--- a/modules/structs/repo.go
+++ b/modules/structs/repo.go
@@ -73,6 +73,7 @@ type Repository struct {
 	Stars               int         `json:"stars_count"`
 	Forks               int         `json:"forks_count"`
 	Watchers            int         `json:"watchers_count"`
+	BranchCount         int         `json:"branch_count"`
 	OpenIssues          int         `json:"open_issues_count"`
 	OpenPulls           int         `json:"open_pr_counter"`
 	Releases            int         `json:"release_counter"`
diff --git a/services/convert/repository.go b/services/convert/repository.go
index 150c952b15..658d31d55c 100644
--- a/services/convert/repository.go
+++ b/services/convert/repository.go
@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"code.gitea.io/gitea/models/db"
+	git_model "code.gitea.io/gitea/models/git"
 	"code.gitea.io/gitea/models/perm"
 	access_model "code.gitea.io/gitea/models/perm/access"
 	repo_model "code.gitea.io/gitea/models/repo"
@@ -144,6 +145,11 @@ func innerToRepo(ctx context.Context, repo *repo_model.Repository, permissionInR
 		RepoID:        repo.ID,
 	})
 
+	branchCount, err := git_model.CountBranches(ctx, repo.ID, false)
+	if err != nil {
+		log.Error("CountBranches [%d]: %v", repo.ID, err)
+	}
+
 	mirrorInterval := ""
 	var mirrorUpdated time.Time
 	if repo.IsMirror {
@@ -205,6 +211,7 @@ func innerToRepo(ctx context.Context, repo *repo_model.Repository, permissionInR
 		Stars:                         repo.NumStars,
 		Forks:                         repo.NumForks,
 		Watchers:                      repo.NumWatches,
+		BranchCount:                   int(branchCount),
 		OpenIssues:                    repo.NumOpenIssues,
 		OpenPulls:                     repo.NumOpenPulls,
 		Releases:                      int(numReleases),
diff --git a/templates/swagger/v1_json.tmpl b/templates/swagger/v1_json.tmpl
index 7b86cc3d45..212046f8e6 100644
--- a/templates/swagger/v1_json.tmpl
+++ b/templates/swagger/v1_json.tmpl
@@ -28128,6 +28128,11 @@
           "type": "string",
           "x-go-name": "AvatarURL"
         },
+        "branch_count": {
+          "type": "integer",
+          "format": "int64",
+          "x-go-name": "BranchCount"
+        },
         "clone_url": {
           "type": "string",
           "x-go-name": "CloneURL"