Phare de Saint-Georges-de-Didonne, Maritime lighthouse in Saint-Georges-de-Didonne, France.

The Phare de Saint-Georges-de-Didonne, also called phare de Vallières, is a square tower of granite ashlar at the base and smaller bossaged cut stone above, rising 29 m to a lantern for 36 m total. Four windows light the east and west sides; a cornice on volute consoles carries a balustrade around the copper dome, weather vane and lightning rod. A pediment and pilasters frame the entrance.

A first beacon only eight metres high was built in 1860 to guide entry to the port, but it soon proved inadequate. In 1898 the municipality commissioned a true lighthouse: Émile Gabaud, a Ponts et Chaussées sub-engineer, drew the plans and the contractor Simon Brunet, of Grandjean, carried out the work, completed in 1902. Shell impacts from the 1945 fighting for the Royan pocket remain, mainly on the north face; the tower was partly rebuilt after the war, electrified in 1947 and decommissioned on 28 June 1969. It was inscribed as a monument historique on 23 May 2011 and classified on 23 October 2012.

The lighthouse is known locally as the phare de Vallières, after the cliff on which it stands. It replaced an 1860 beacon that, at barely eight metres, was too low to guide ships into the port. Its north face still shows shell impacts from the 1945 fighting to liberate the Royan pocket.

The summit platform is reached by a straight staircase of 144 steps, lit by four windows on the east and west sides. The lighthouse is open to visitors from June to September. From the top, the view takes in part of the Côte de Beauté and the nearby Médoc coast.

The lighthouse was decommissioned on 28 June 1969, so it no longer guides ships. Its north face still bears shell impacts from the 1945 fighting to liberate the Royan pocket, and the tower was partly rebuilt after the war and electrified in 1947.