Laznica (Serbian Cyrillic: Лазница; Romanian: Laznița) is a large highland village in Serbia.

The village has an ethnic Timok Romanian ("Vlach") majority and its population numbering 2,063 people (2002 census).

A little is known about this village in the old ages - the only fact remains that it has been constantly populated by people from the Roman conquer of Triballian and Dacian lands that have become Dacia Superior and Dacia Minor.

In the stone hill above Laznica the `Krsia cu Albineli`, the archaeologists have found prehistorical axes, knives and everyday dishes and also, on the same spot, remnants of an old border Roman fortress.

The village was first time mentioned in Ottoman census (Braničevski tefter) in 1433 (est.)