Passer is a genus of sparrows, also known as the true sparrows.
Passer may also refer to: PASSER program suite, a series of traffic control optimization software Passer (river), a river in Italy Passer (surname) Passed pawn, a type of pawn in chess
See also Passed ball, passed by a passer Passer rating Pass (disambiguation) for the performance of a passer Passing (disambiguation) for the action of a passer