diff --git a/doc/api/next_api_changes/deprecations/24990-OG.rst b/doc/api/next_api_changes/deprecations/24990-OG.rst
new file mode 100644
index 000000000000..180be1fd7659
--- /dev/null
+++ b/doc/api/next_api_changes/deprecations/24990-OG.rst
@@ -0,0 +1,5 @@
+Arguments other than ``renderer`` to ``get_tightbbox``
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+... are keyword-only arguments. This is for consistency and that
+different classes have different additional arguments.
diff --git a/lib/matplotlib/axes/_base.py b/lib/matplotlib/axes/_base.py
index d10b4e020056..d97a86224a2e 100644
--- a/lib/matplotlib/axes/_base.py
+++ b/lib/matplotlib/axes/_base.py
@@ -4328,6 +4328,7 @@ def get_default_bbox_extra_artists(self):
         return [a for a in artists if a.get_visible() and a.get_in_layout()
                 and (isinstance(a, noclip) or not a._fully_clipped_to_axes())]
 
+    @_api.make_keyword_only("3.8", "call_axes_locator")
     def get_tightbbox(self, renderer=None, call_axes_locator=True,
                       bbox_extra_artists=None, *, for_layout_only=False):
         """
diff --git a/lib/matplotlib/figure.py b/lib/matplotlib/figure.py
index 7b273cf9fb81..986bb85f3fc3 100644
--- a/lib/matplotlib/figure.py
+++ b/lib/matplotlib/figure.py
@@ -1688,6 +1688,7 @@ def get_default_bbox_extra_artists(self):
                 bbox_artists.extend(ax.get_default_bbox_extra_artists())
         return bbox_artists
 
+    @_api.make_keyword_only("3.8", "bbox_extra_artists")
     def get_tightbbox(self, renderer=None, bbox_extra_artists=None):
         """
         Return a (tight) bounding box of the figure *in inches*.
diff --git a/lib/mpl_toolkits/axes_grid1/parasite_axes.py b/lib/mpl_toolkits/axes_grid1/parasite_axes.py
index b8781a18c22b..cafd06adba2e 100644
--- a/lib/mpl_toolkits/axes_grid1/parasite_axes.py
+++ b/lib/mpl_toolkits/axes_grid1/parasite_axes.py
@@ -215,6 +215,7 @@ def _remove_any_twin(self, ax):
         self.axis[tuple(restore)].set_visible(True)
         self.axis[tuple(restore)].toggle(ticklabels=False, label=False)
 
+    @_api.make_keyword_only("3.8", "call_axes_locator")
     def get_tightbbox(self, renderer=None, call_axes_locator=True,
                       bbox_extra_artists=None):
         bbs = [
diff --git a/lib/mpl_toolkits/mplot3d/axes3d.py b/lib/mpl_toolkits/mplot3d/axes3d.py
index f9a48136285a..3acf91d5d69c 100644
--- a/lib/mpl_toolkits/mplot3d/axes3d.py
+++ b/lib/mpl_toolkits/mplot3d/axes3d.py
@@ -3181,6 +3181,7 @@ def _digout_minmax(err_arr, coord_label):
 
         return errlines, caplines, limmarks
 
+    @_api.make_keyword_only("3.8", "call_axes_locator")
     def get_tightbbox(self, renderer=None, call_axes_locator=True,
                       bbox_extra_artists=None, *, for_layout_only=False):
         ret = super().get_tightbbox(renderer,