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[1] and commissioned on 21 December 1929.

Odin was sent to Malta shortly before Italy declared war on 10 June.

[1] Odin was depth charged and sunk in the Gulf of Taranto, most probably by the Italian destroyers Strale and Baleno on 14 June 1940.

This article about a specific naval submarine of the United Kingdom is a stub.