Two submarines of the Royal Navy have borne the name Oberon.
HMS Oberaon (21P) was an O class submarine laid down by HM Dockyard at Chatham in Kent on 22 April 1924, launched on 24 September 1926 and commissioned on 24 August 1927. She served with the 5th Flotilla at Portsmouth from 1927 to 1931, with the 1st Flotilla at Malta from 1931 to 1934, with the Home Fleet in 1934 and 1935, with the 5th Flotilla at Portsmouth from 1935 to 1939, with the 7th Flotilla at Holy Loch from 1940 to March 1944 and with the 6th Flotilla at Blyth. HMS Oberon paid off on 24 August 1945, was sold for scrap to Clayton and Davie and broken up at Dunston.
HMS Oberon (S09), the lead submarine of the class, was laid down by HM Dockyard at Chatham in Kent on 28 November 1957, launched on 18 July 1959 and commissioned on 24 February 1961. HMS Oberon paid off on 10 October 1986, was sold to Seaforth Ship Repairers in 1987 and broken up at Immingham.