Josep Llunas i Pujals (January 30, 1852–May 23, 1905) was a Catalan libertarian and free-thinker from Spain.

He was a typesetter by profession, but he also studied music and singing and was a theatrical director.

Of special significance in this regard was his role as secretary of the Catalan Athenaeum of the Working Classes, a proletarian cultural center which promoted a type of scientific anarchism.

Llunas believed that the growth of science would promote social equality.

This biographical article about an anarchist is a stub.