Serge Brunier (born 1958 in Paris) is a French photographer, reporter, and writer who has specialized in popular depictions of astronomical subjects.

Brunier works together with the magazine Science et Vie and is a columnist of the radio station France Info.

He campaigns for an exploration of the Solar System through unmanned spacecraft, but fights against crewed spaceflight.

Brunier created a panoramic photograph of the Milky Way in the Atacama desert over two years; it was shown at his first exposition in the Monte Carlo Casino in 2006, and in 2007 at the Palais de la Découverte in Paris with its one hundred million pixels fit onto 144 square meters.

The International Astronomical Union has named the asteroid 10943 after Brunier in recognition of his services in the advancement of science.