Val-Brillant (French pronunciation: [val bʁijɑ̃]) is a municipality in eastern Quebec, Canada, at the base of the Gaspé peninsula.

On the southern shores of the Lake Matapedia, Val-Brillant is part of the Matapédia Valley.

The place was previously known by many other names: Lac-Matapédia; Brochu or Brouché, followed by Lac-à-Brochu until 1871 (after Pierre Brochu (1795–1871), the first settler in the valley in what is now Sayabec); McGowe (after an engineer working on the railroad); Cedar Hall from 1876 to 1912 (referring to the large hangar built from pieces of cedar that served as a coal shed for the railway); and Saint-Pierre-du-Lac (in honour of Pierre Brillant (1852–1911), missionary in the Matapedia Valley from 1881 to 1889 and parish priest from 1889 to his death).

Supervisor Engineer Peter Grant built for himself a house that also accommodated the railway employees for many years.

In 1881, the post office opened, and two years later, the Mission of Saint-Pierre-du-Lac was established, named in honour of Pierre Brillant.