Kaiser Wilhelm is a common reference to two German emperors: Wilhelm I (1797–1888) Wilhelm II (1859–1941)
Kaiser Wilhelm may also refer to: Kaiser Wilhelm (baseball) (1874–1936), early 20th century baseball pitcher Kaiser Wilhelm Society, a German entity Kaiser Wilhelm Memorial Church, a memorial church for Wilhelm I Kaiser-Wilhelm-Brücke, a bridge in Wilhelmshaven Kaiser-Wilhelmsland, a part of New Guinea
See also Kaiser Wilhelm II (disambiguation)