Tremelo (Dutch pronunciation: [ˈtreːməloː]) is a municipality located in the Belgian province of Flemish Brabant, in Flanders.

The municipality comprises the towns of Baal and Tremelo proper.

Located in the arrondissement or administrative district of Leuven, the official language is Dutch.

whom Pope Benedict XVI canonized on October 11, 2009, as Saint Damien of Molokai.

Father Damien is locally known as Pater Damiaan, and was a legendary martyr of charity who had tended to the lepers in the Hawaiian Islands.