Fornes or Fornés is a surname. Notable people with the surname include:
Abraham Fornés (born 1939), Puerto Rican long-distance runner Buddy Fornes (1931–1983), American football player Charles V. Fornes, American politician Luis Barahona Fornés, Chilean politician María Irene Fornés (1930–2018), Cuban-American playwright and director Miguel Ángel Fornés (born 1993), Spanish volleyball player Óscar Fornés (born 1983), Spanish footballer Paula Montal Fornés (1799–1889), Spanish Catholic nun Sverre Fornes (1932–2021), Norwegian football player