The Pwersa ng Masang Pilipino (lit. 'Force of the Filipino Masses'), formerly Partido ng Masang Pilipino (lit. 'Party of the Filipino Masses'), is a populist political party in the Philippines. It is the political party of former Philippine President Joseph E. Estrada. In the May 1998 presidential election, it aligned itself with other political parties to form the Laban ng Makabayang Masang Pilipino (Struggle of the Patriotic Filipino Masses).