Three ships of the Royal Navy have borne the name HMS Chub, or alternatively HMS Chubb, a name given to several types of fish, many in the family Cyprinidae:
References
HMS Chub Wikipedia(Text) CC BY-SA
Three ships of the Royal Navy have borne the name HMS Chub, or alternatively HMS Chubb, a name given to several types of fish, many in the family Cyprinidae: