Little Bull Lake is a lake in Algoma District, Ontario, Canada. It is about long and wide, and lies at an elevation of . The primary inflow is an unnamed creek from Bull Lake, and the primary outflow is an unnamed creek to Burnett Lake, which flows via Low Creek into the West River aux Sables, a tributary of the River aux Sables.
Bull Lake is about north of the community of Massey, where the River aux Sables joins the Spanish River.