Antonio Ubaldo Rattín (born May 16, 1937 in Tigre, Buenos Aires Province) is a former Argentine football player, best known as a Boca Juniors midfielder, and because of an incident in a match at the 1966 FIFA World Cup.
Rattín still remains as one of the greatest idols of Boca Juniors, the only club where he played for 15 years, winning 5 titles.
He also played for the Argentina national team, winning the Taça das Nações (Nations Cup) in 1964.