Kaltenbrunner is a German surname. Notable people with the surname include:
Ernst Kaltenbrunner (1903–1946), Austrian-born senior SS official of Nazi Germany, executed for war crimes Ernst Kaltenbrunner (footballer) (1937–1967), Austrian footballer Gerd-Klaus Kaltenbrunner (1939–2011), Austrian writer and publisher Gerlinde Kaltenbrunner (born 1970), Austrian mountaineer Günter Kaltenbrunner (born 1943), Austrian footballer Josef Kaltenbrunner (1888–1951), Austrian footballer