Prof Giorgio Abetti HFRSE (5 October 1882 – 24 August 1982) was an Italian solar astronomer.

[2] In 1921 he succeeded his father as the director of the Osservatorio Astrofisico di Arcetri, and continued until 1957.

[1] Giorgio Abetti is noted for having led expeditions to observe solar eclipses to Siberia (1936) and Sudan (1952).

He was the vice president of the International Astronomical Union in 1938, and received the Medaglia d'argento from the Italian Geographic Society (1915), the Premio reale from the Accademia dei Lincei (1925), and the Janssen medal (1937).

[1] In 1937, Abetti received the Prix Jules Janssen, the highest award of the Société astronomique de France, the French astronomical society.