Lebialem is a department of Southwest Region in Cameroon.

The Division covers an area of 617 km2 and as of 2005 had a total population of 113,736.

Lebialem got its name from the Lebialem Falls, a twin water fall, which means "a hill from which water drops".

The Division is dominated by two ethnic groups, the Mundani to the north and the Bangwa to the south (ba meaning people of), though other ethnic groups exists, the makeup a minority, example the Mbo, Banyangi and Bamiléké.

The department is divided administratively into 3 districts and in turn into 17 villages or Fundons.