diff --git a/CHANGES.md b/CHANGES.md
index 744b3619..2eca8d48 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,11 @@
 # CHANGELOG
 
+## 0.9.1 (yyyy-mm-dd)
+
+### Bug fixes
+
+-   Silence warning from `write_dataframe` with `GeoSeries.notna()` (#435).
+
 ## 0.9.0 (2024-06-17)
 
 ### Improvements
diff --git a/pyogrio/geopandas.py b/pyogrio/geopandas.py
index 10be32ea..71fddcad 100644
--- a/pyogrio/geopandas.py
+++ b/pyogrio/geopandas.py
@@ -520,7 +520,10 @@ def write_dataframe(
         # If there is data, infer layer geometry type + promote_to_multi
         if not df.empty:
             # None/Empty geometries sometimes report as Z incorrectly, so ignore them
-            has_z_arr = geometry[geometry.notna() & (~geometry.is_empty)].has_z
+            with warnings.catch_warnings():
+                warnings.filterwarnings("ignore", r"GeoSeries\.notna", UserWarning)
+                geometry_notna = geometry.notna()
+            has_z_arr = geometry[geometry_notna & (~geometry.is_empty)].has_z
             has_z = has_z_arr.any()
             all_z = has_z_arr.all()
 
diff --git a/pyogrio/tests/test_geopandas_io.py b/pyogrio/tests/test_geopandas_io.py
index a8a7b94c..9da98cf2 100644
--- a/pyogrio/tests/test_geopandas_io.py
+++ b/pyogrio/tests/test_geopandas_io.py
@@ -2,6 +2,7 @@
 from datetime import datetime
 from io import BytesIO
 import locale
+import warnings
 
 import numpy as np
 import pytest
@@ -1062,6 +1063,21 @@ def test_write_empty_dataframe(tmp_path, ext, use_arrow):
     assert_geodataframe_equal(df, expected)
 
 
+def test_write_empty_geometry(tmp_path):
+    expected = gp.GeoDataFrame({"x": [0]}, geometry=from_wkt(["POINT EMPTY"]), crs=4326)
+    filename = tmp_path / "test.gpkg"
+
+    # Check that no warning is raised with GeoSeries.notna()
+    with warnings.catch_warnings():
+        warnings.simplefilter("error", UserWarning)
+        write_dataframe(expected, filename)
+    assert filename.exists()
+
+    # Xref GH-436: round-tripping possible with GPKG but not others
+    df = read_dataframe(filename)
+    assert_geodataframe_equal(df, expected)
+
+
 @pytest.mark.parametrize("ext", [".geojsonl", ".geojsons"])
 @pytest.mark.requires_arrow_write_api
 def test_write_read_empty_dataframe_unsupported(tmp_path, ext, use_arrow):