Ganio or Ganios is a surname. Notable people with the surname include:
(born c.1954), French dancer and ballet teacher, ex-étoile of the Ballet de Marseille. Mathieu Ganio (born 1984), French dancer, étoile of the Paris Opera Ballet; the son of Denys Ganio and Dominique Khalfouni. Tony Ganios (1959–2024), American actor
See also Gagnot