Augustinas Povilaitis (24 February 1900 in Pašventys, Jurbarkas district – 12 July 1941 in Moscow) was a captain of the Lithuanian Army and Director of the State Security Department of Lithuania.
Together with Minister of the Interior Kazys Skucas, Povilaitis was a target of anti-Lithuanian Soviet propaganda in the days leading to the 1940 Soviet ultimatum and occupation of Lithuania.
Directly after the Red Army invaded Lithuania on 15 June 1940, Povilaitis was arrested and transported to Moscow; he was executed in 1941.
In 2006 he was awarded the Order of the Cross of Vytis.