Overview: HMS Osiris was an O-class submarine of the Royal Navy. She was laid down by Vickers-Armstrongs of Barrow-in-Furness on 12 May 1927, launched on 19 May 1928 and commissioned on 25 Jan 1929.

Overview: HMS Oswald was an Odin-class submarine built for the Royal Navy during the 1920s.

Overview: HMS Orpheus (N46) was an O-class submarine of the Royal Navy. She was laid down by William Beardmore and Company on the Clyde on 14 April 1927, launched on 26 February 1929 and commissioned on 23 September ...

Overview: HMS Oberon was the prototype for the Odin-class submarine of the Royal Navy.

Overview: HMS Otway (originally HMAS Otway) was an Odin-class submarine of the Royal Australian Navy (RAN) and Royal Navy (RN).

Overview: HMS Odin (N84) was an O-class submarine of the Royal Navy. She was laid down by HM Dockyard at Chatham in Kent on 23 June 1927, launched on 5 May 1928 and commissioned on 21 December 1929. The name Odin ...

Overview: HMS Otus was an O-class submarine of the Royal Navy. She was laid down by Vickers-Armstrongs of Barrow-in-Furness on 31 May 1927, launched on 31 August 1928 and commissioned on 5 July 1929.

Overview: HMS Olympus was an Odin-class submarine, a class originally designed for the Royal Australian Navy to cope with long distance patrolling in Pacific waters. Olympus was built to the same design for the ...

Overview: HMS Oxley (originally HMAS Oxley) was an Odin-class submarine of the Royal Australian Navy (RAN) then Royal Navy (RN). Very slightly off course, near Obrestad, on the south-western cape of Norway, she ...