187 Lamberta is a main-belt asteroid that was discovered by Corsican-born French astronomer Jérôme Eugène Coggia on April 11, 1878, and named after the astronomer Johann Heinrich Lambert.

It was the second of Coggia's five asteroid discoveries.

The spectrum matches a classification of a C-type asteroid, which may mean it has a composition of primitive carbonaceous materials.

It is a dark object as indicated by the low albedo and has an estimated size of about 131 km.

This article about a C-type asteroid native to the asteroid belt is a stub.