diff --git a/scripts/addons_core/io_scene_fbx/__init__.py b/scripts/addons_core/io_scene_fbx/__init__.py
index ca6e334763e..0699a516d38 100644
--- a/scripts/addons_core/io_scene_fbx/__init__.py
+++ b/scripts/addons_core/io_scene_fbx/__init__.py
@@ -5,8 +5,8 @@
 bl_info = {
     "name": "FBX format",
     "author": "Campbell Barton, Bastien Montagne, Jens Restemeier, @Mysteryem",
-    "version": (5, 12, 7),
-    "blender": (4, 2, 0),
+    "version": (5, 13, 0),
+    "blender": (4, 5, 0),
     "location": "File > Import-Export",
     "description": "FBX IO meshes, UVs, vertex colors, materials, textures, cameras, lamps and actions",
     "warning": "",
@@ -391,6 +391,7 @@ class ExportFBX(bpy.types.Operator, ExportHelper):
         items=(('OFF', "Normals Only", "Export only normals instead of writing edge or face smoothing data"),
                ('FACE', "Face", "Write face smoothing"),
                ('EDGE', "Edge", "Write edge smoothing"),
+               ('SMOOTH_GROUP', "Smoothing Groups", "Write face smoothing groups"),
                ),
         description="Export smoothing information "
         "(prefer 'Normals Only' option if your target importer understand split normals)",
diff --git a/scripts/addons_core/io_scene_fbx/export_fbx_bin.py b/scripts/addons_core/io_scene_fbx/export_fbx_bin.py
index 397bc26771b..69e2b54f7fe 100644
--- a/scripts/addons_core/io_scene_fbx/export_fbx_bin.py
+++ b/scripts/addons_core/io_scene_fbx/export_fbx_bin.py
@@ -1032,7 +1032,7 @@ def fbx_data_mesh_elements(root, me_obj, scene_data, done_meshes):
     # And now, layers!
 
     # Smoothing.
-    if smooth_type in {'FACE', 'EDGE'}:
+    if smooth_type in {'FACE', 'EDGE', 'SMOOTH_GROUP'}:
         ps_fbx_dtype = np.int32
         _map = b""
         if smooth_type == 'FACE':
@@ -1047,6 +1047,10 @@ def fbx_data_mesh_elements(root, me_obj, scene_data, done_meshes):
                 # The mesh has no "sharp_face" attribute, so every face is smooth.
                 t_ps = np.ones(len(me.polygons), dtype=ps_fbx_dtype)
             _map = b"ByPolygon"
+        elif smooth_type == 'SMOOTH_GROUP':
+            smoothing_groups = me.calc_smooth_groups(use_bitflags=True, use_boundary_vertices_for_bitflags=True)[0]
+            t_ps = np.asarray(smoothing_groups, dtype=ps_fbx_dtype)
+            _map = b"ByPolygon"
         else:  # EDGE
             _map = b"ByEdge"
             if t_pvi_edge_indices.size:
@@ -1503,7 +1507,7 @@ def fbx_data_mesh_elements(root, me_obj, scene_data, done_meshes):
         lay_tan = elem_empty(layer, b"LayerElement")
         elem_data_single_string(lay_tan, b"Type", b"LayerElementTangent")
         elem_data_single_int32(lay_tan, b"TypedIndex", 0)
-    if smooth_type in {'FACE', 'EDGE'}:
+    if smooth_type in {'FACE', 'EDGE', 'SMOOTH_GROUP'}:
         lay_smooth = elem_empty(layer, b"LayerElement")
         elem_data_single_string(lay_smooth, b"Type", b"LayerElementSmoothing")
         elem_data_single_int32(lay_smooth, b"TypedIndex", 0)