Daniel Onega (born 17 March 1945) is a retired Argentine football player who played most of his career for River Plate.

It was with River Plate that he became the topscorer in the 1966 Copa Libertadores with 17 goals, setting the record for the most goals ever scored in a single season in that tournament, a record that has never been surpassed.

He is also the 4th in the all time Copa Libertadores topscorers list with 31 goals in 47 games.

At the end of the 1978 season Onega retired from football.

This biographical article related to an Argentine association football forward is a stub.