Guasave (Spanish pronunciation:[ɡwaˈsaβe]) is a city which is the seat of the homonymous municipality in the Mexican state of Sinaloa. It is located in the northwestern part of the state, southeast of the city of Los Mochis. It stands at 25°34′28″N108°28′14″W / 25.57444°N 108.47056°W / 25.57444; -108.47056.