Cymidae is a family of true bugs in the order Hemiptera. There are at least 60 described species in Cymidae.

Genera: Genera are placed in two subfamilies:
Cyminae: Authority: Baerensprung, 1860
# Ashlockia Hamid, 1975
# Cymocoris Popov, 1986
# Cymodema Spinola, 1837
# Cymus Hahn, 1833
# Neocymodema Hamid, 1975
Ontiscinae: Authority: Hamid, 1975
# Neocymus Van Duzee, 1932
# Nesocymus Kirkaldy, 1907
# Ontiscus Stal, 1874
# Pseudocymus Van Duzee, 1936
# Sephora Kirkaldy, 1902
Incertae sedis
# † Cephalocoris Heer, 1853
# † Procymus Usinger, 1940