Aaron Twapewa Johannes Mushimba (29 November 1946 – 31 August 2014) was a Namibian businessperson. Described as a business mogul,[1] Mushimba was involved with the trading of diamonds. He was linked to Belgian American diamond merchant Maurice Tempelsman.[2] He was the chairperson of a Namibian investment group, PE Minerals, which holds the mining rights to the Rosh Pinah mine in Namibia's ǁKaras Region.[3] He is the brother-in-law of Namibia's founding President Sam Nujoma.[4]