PSTU

PSTU may refer to:
 * Patuakhali Science and Technology University, a university in Bangladesh
 * Partido Socialista dos Trabalhadores Unificado (United Socialist Workers' Party), a Brazilian political party
 * Partido Socialista de los Trabajadores Unificado (United Socialist Workers' Party (Argentina)), an Argentine political party
 * Perm State Technical University, a university in Perm, Russia
 * Potti Sreeramulu Telugu University, a university in India