Battlecruiser Squadron 6 was a tactical unit of the Mannerheim System-Defense Force. (HH12)
In 1921 PD the squadron consisted of eight units. Commanding Officer of the squadron was Commodore Jerome Ganneau.
In 1921 PD Battlecruiser Squadron 6 was assigned to picket the SGC-902-36-G System and destroyed HMS Harvest Joy there.