Hum (Italian: Colmo; German: Cholm) is a settlement, administratively located in the town of Buzet, in the central part of Istria, Croatia.

The elevation is 349 m. Due to its size, Hum is considered by some to be one of the smallest towns in the world.

[3][citation needed] On its western side, the town is enclosed by walls and on the remaining sides houses are built into the defensive walls.

It was first mentioned in documents dating from 1102, at which time it was called Cholm which is derived from the Italian name Colmo.

[4] The town's parish church of the Assumption of Mary, with its classical facade was built in 1802 on the site of an earlier church which was built by the local master Juraj Gržinić.