No subspecies are recognized.
Vespa crassicornis Panzer, 1798
Odynerus crassicornis (Panzer, 1798)
Odynerus crassicornis crassicornis (Panzer, 1798)
Symmorphus crassicornis (Panzer, 1798)
Neotype: Female specimen from Gründberg (Linz), Austria, designated by Cumming (1989).
Odynerus arcticus Saussure, 1855
Odynerus crassicornis arcticus (Saussure, 1855)
Type material: missing, fide Cumming (1989).
Odynerus herrichianus Saussure, 1855
Type material: missing, but a possible type specimen, a male, has been discovered by Cummings (1989) in the Museum National d´Histoire Naturelle, Paris (France).
Odynerus nursei Bingham, 1898
Lectotype: A female from Shimla (India), selected and synonymized by Cumming (1989)
Odynerus hospes Nurse, 1903
Nec Dufour et Perris, 1840 (junior primary homonym).
Holotype: A male from Shimla (India), fide Cumming (1989). Synonymized by Cumming (1989)
Odynerus hospitans Dalla Torre, 1904
Odynerus crassicornis baltica Bluethgen, 1937
Holotype: A female specimen from Olownik (=Launingken), Poland (fide Cumming (1989)).
Odynerus alternans auct. nec Zetterstedt, 1838 (misidentification)
Vespa muraria auct. nec Linnaeus, 1758 (misidentification)
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