Several Canadian naval units have been named HMCS Regina.

• HMCS Regina (K234) (I) was a Flower-class corvette that served in the Royal Canadian Navy during the Second World War.
• HMCS Regina (FFH 334) (II) is a Halifax-class frigate that serves in the Canadian Forces.

Battle honours

• Atlantic, 1942–44
• Gulf of St. Lawrence, 1942, 1944.
• Mediterranean, 1943.
• English Channel, 1944.
• Normandy, 1944.
• Arabian Sea