HMS Aeneas (P427) was a British Amphion-class submarine of the Royal Navy, built by Cammell Laird and launched on 9 October 1945.

[2] Aeneas played the part of the M1 submarine in the 1967 James Bond film You Only Live Twice.

In 1972 Aeneas was hired by Vickers for use in what proved to be successful trials of the Submarine-Launched Airflight Missile (SLAM) system, an anti-aircraft system using a cluster of four Shorts Blowpipe missiles on an extendable mast, allowing attacks against low flying aircraft while the submarine was at periscope depth.

On 26 September 2012, at the company's Le Mourillon plant, DNCS announced plans to design and build a submarine canister-based air defence weapon based on MBDA's Mistral.

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