The list of ship commissionings in 1870 includes a chronological list of all ships commissioned in 1870.

	Operator	Ship	Class and type	Pennant	Other notes
4 March	United States Navy	Congress	Sloop
13 March	Colony of Victoria	Cerberus	Cerberus-class breastwork monitor
April	Royal Navy	Captain	Turret ship		[1]
28 September	Royal Navy	Vanguard	Audacious-class battleship
1 October	Royal Navy	Invincible	Audacious-class battleship

References