Two ships of the Canadian navy have been named HMCS St. Croix. (I) was a that was originally commissioned as until transfer to the Royal Canadian Navy in 1940 by way of the Royal Navy. (II) was a that served in the RCN from 1958 to unification in 1968 and thence in the Canadian Forces Maritime Command from 1968 until 1974.
Battle honours Atlantic 1940–43