Whisnu Sakti Buana (22 October 1974 – 27 May 2023) was an Indonesian politician. He briefly served as the mayor of Surabaya between December 2020 and February 2021, mostly in an acting capacity to replace Tri Rismaharini for whom he had served under as vice-mayor of Surabaya between 2014 and 2015, and again between 2016 and 2020