Montañez is a Spanish surname. Notable people with the surname include:
Andy Montañez (born 1942), Puerto Rican singer and songwriter Beatriz Montañez (born 1977), Spanish TV presenter and actress Cindy Montañez (born 1974), American politician Lou Montañez (born 1981), Puerto Rican baseball player Pedro Montañez (1914–1996), Puerto Rican boxer Polo Montañez (1955–2002), Cuban singer and songwriter Raphael Montañez Ortiz (born 1934), American artist and educator Richard Montañez (born c. 1958), American businessman, motivational speaker and author Virginia Montanez, American writer, essayist, author and columnist Willie Montañez (born 1948), Puerto Rican baseball player