Two submarines of the Royal Navy have borne the name Odin.
The first HMS Odin (84P) was an O class submarine laid down by HM Dockyard at Chatham in Kent on 23 June 1927, launched on 5 May 1928 and commissioned on 21 December 1929. She served with the 5th Flotilla at Portsmouth in 1929 and 1930, with the 4th Flotilla at Hong Kong from 1930 until 1939, with the 8th Flotilla at Colombo in Ceylon in 1939 and 1940, and with the 1st Flotilla at Alexandria in Egypt in 1940. HMS Odin was depth charged by the enemy Italian destroyer Strale and the torpedo boat Baleno and sank in the Gulf of Taranto on 13 June 1940.
The second HMS Odin (S10) was an Oberon class submarine laid down by Cammell Laird and Company, Limited, at Birkenhead on 27 April 1959, launched on 4 November 1960 and commissioned on 3 May 1962. HMS Odin paid off on 18 September 1990 and was sold for scrap in Greece in September 1991.