Luis Gálvez Rodríguez de Arias (1864-1935) was a Spanish journalist, diplomat and adventurer who proclaimed the Republic of Acre in 1899. He ruled Acre between July 14, 1899 and January 1, 1900 for the first time, and between January 30 and March 15, 1900, for the second and last time.

The Republic of Acre or the Independent State of Acre were the names of a series of separatist governments in then Bolivia's Acre region between 1899 and 1903. The region was eventually annexed by Brazil in 1903 and is now the State of Acre.