The Arenas Blancas Lighthouse (Spanish: Faro de Arenas Blancas) is an active lighthouse on the Canary island of La Palma in the municipality of Villa de Mazo, near the village of La Salemera.

The modern lighthouses of Arenas Blancas and Punta Lava are located on the eastern and western sides of the island.

[3] The need for the lighthouse was identified in the third maritime lighting plan for the Canaries in 1989, as a navigation aid for coastal shipping on the east coast of the island.

[2][5] The white cylindrical tower with a curved tip is considered to be of a "striking modern" design.

[2] The lighthouse is operated and maintained by the port authority of the province of Santa Cruz de Tenerife.