diff --git a/plotly/graph_objs/layout/_template.py b/plotly/graph_objs/layout/_template.py
index cc93069a078..69f6cf38ec5 100644
--- a/plotly/graph_objs/layout/_template.py
+++ b/plotly/graph_objs/layout/_template.py
@@ -1,9 +1,10 @@
-from plotly.basedatatypes import BaseLayoutHierarchyType as _BaseLayoutHierarchyType
 import copy as _copy
+import warnings
+
+from plotly.basedatatypes import BaseLayoutHierarchyType as _BaseLayoutHierarchyType
 
 
 class Template(_BaseLayoutHierarchyType):
-
     # class properties
     # --------------------
     _parent_path_str = "layout"
@@ -324,7 +325,13 @@ def __init__(self, arg=None, data=None, layout=None, **kwargs):
         _v = arg.pop("data", None)
         _v = data if data is not None else _v
         if _v is not None:
-            self["data"] = _v
+            # Template.data contains a 'scattermapbox' key, which causes a
+            # go.Scattermapbox trace object to be created during validation.
+            # In order to prevent false deprecation warnings from surfacing,
+            # we suppress deprecation warnings for this line only.
+            with warnings.catch_warnings():
+                warnings.filterwarnings("ignore", category=DeprecationWarning)
+                self["data"] = _v
         _v = arg.pop("layout", None)
         _v = layout if layout is not None else _v
         if _v is not None:
diff --git a/tests/test_core/test_graph_objs/test_graph_objs.py b/tests/test_core/test_graph_objs/test_graph_objs.py
index 8c5f62c7534..5b0e3dbbdf7 100644
--- a/tests/test_core/test_graph_objs/test_graph_objs.py
+++ b/tests/test_core/test_graph_objs/test_graph_objs.py
@@ -1,5 +1,7 @@
 from unittest import TestCase
+import warnings
 
+import pytest
 import plotly.graph_objs as go
 
 
@@ -46,7 +48,6 @@
 
 class TestBackwardsCompat(TestCase):
     def test_old_class_names(self):
-
         # these were all defined at one point, we want to maintain backwards
         # compat, so we basically just create a checkpoint with this test.
 
@@ -154,3 +155,29 @@ def test_pop_invalid_prop_key_error(self):
 
     def test_pop_invalid_prop_with_default(self):
         self.assertEqual(self.layout.pop("bogus", 42), 42)
+
+
+class TestDeprecationWarnings(TestCase):
+    def test_warn_on_deprecated_mapbox_traces(self):
+        # This test will fail if any of the following traces
+        # fails to emit a DeprecationWarning
+        for trace_constructor in [
+            go.Scattermapbox,
+            go.Densitymapbox,
+            go.Choroplethmapbox,
+        ]:
+            with pytest.warns(DeprecationWarning):
+                _ = go.Figure([trace_constructor()])
+
+    def test_no_warn_on_non_deprecated_traces(self):
+        # This test will fail if any of the following traces emits a DeprecationWarning
+        for trace_constructor in [
+            go.Scatter,
+            go.Bar,
+            go.Scattermap,
+            go.Densitymap,
+            go.Choroplethmap,
+        ]:
+            with warnings.catch_warnings():
+                warnings.simplefilter("error")
+                _ = go.Figure([trace_constructor()])
diff --git a/tests/test_optional/test_px/test_px.py b/tests/test_optional/test_px/test_px.py
index 185dcf5afca..3a8ddabcd0a 100644
--- a/tests/test_optional/test_px/test_px.py
+++ b/tests/test_optional/test_px/test_px.py
@@ -1,9 +1,11 @@
+from itertools import permutations
+import warnings
+
 import plotly.express as px
 import plotly.io as pio
 import narwhals.stable.v1 as nw
 import numpy as np
 import pytest
-from itertools import permutations
 
 
 def test_scatter(backend):
@@ -394,3 +396,49 @@ def test_load_px_data(return_type):
         else:
             df = getattr(px.data, fname)(return_type=return_type)
         assert len(df) > 0
+
+
+def test_warn_on_deprecated_mapbox_px_constructors():
+    # This test will fail if any of the following px constructors
+    # fails to emit a DeprecationWarning
+    for fig_constructor in [
+        px.line_mapbox,
+        px.scatter_mapbox,
+        px.density_mapbox,
+        px.choropleth_mapbox,
+    ]:
+        # Look for warnings with the string "_mapbox" in them
+        # to make sure the warning is coming from px rather than go
+        with pytest.warns(DeprecationWarning, match="_mapbox"):
+            if fig_constructor == px.choropleth_mapbox:
+                fig_constructor(locations=["CA", "TX", "NY"])
+            else:
+                fig_constructor(lat=[10, 20, 30], lon=[10, 20, 30])
+
+
+def test_no_warn_on_non_deprecated_px_constructors():
+    # This test will fail if any of the following px constructors
+    # emits a DeprecationWarning
+    for fig_constructor in [
+        px.scatter,
+        px.line,
+        px.scatter_map,
+        px.density_map,
+        px.choropleth_map,
+    ]:
+        with warnings.catch_warnings():
+            warnings.simplefilter("error")
+            if fig_constructor == px.choropleth_map:
+                fig_constructor(locations=["CA", "TX", "NY"])
+            elif fig_constructor in {px.scatter_map, px.density_map}:
+                fig_constructor(lat=[10, 20, 30], lon=[10, 20, 30])
+            else:
+                fig_constructor(x=[1, 2, 3], y=[1, 2, 3])
+
+
+def test_no_warn_on_update_template():
+    # This test will fail if update_layout(template=...) emits a DeprecationWarning
+    fig = px.line(x=[1, 2, 3], y=[1, 2, 3])
+    with warnings.catch_warnings():
+        warnings.simplefilter("error")
+        fig.update_layout(template="plotly_white")