Leslie Norman Mungavin SPk, SK, SBt (22 March 1925 – 1995) was a two-star rank admiral in the Pakistan Navy, and a defence diplomat.

Mungavin was posted as Military and Naval Attaché at the High Commission of Pakistan in London, where his services and negotiation skills merited him a Sitara-e-Pakistan award.

: 234 [9]: 354 [5] In 1980s, Rear Admiral Mungavin was also involved with the negotiations with the US Department of State when the Pakistan Navy was interested in replacing their aging fleet with Gearing-class destroyers.

[10] From January 1979 to April 1980 he served as the Chairman of the Board of the Pakistan National Shipping Corporation.

The Pakistan Navy honored him with a full military funeral, and his ashes were taken out to sea on board the PNS Babur and scattered there.