Seán Cavanagh (born 16 February 1983) is an Irish former Gaelic footballer who played for the Moy Tír Na nÓg club and for the Tyrone county team. He is a five-time All Star winner. He won All-Ireland Championships for Tyrone at minor level and three times at senior level, and captained Ireland in the International Rules Series.

His playing style was very attack-minded, considering he is usually deployed as a midfielder, and he usually ended up scoring more than most of the forwards on the team. This was complemented on the team by Brian Dooher's tireless workrate from the half-forward line – something he is the first to admit. In 2008, he won his third All-Ireland Senior Football Championship, captained Ireland to victory in the International Rules Series, and won his fourth All Star award and the Player of the Year award.

Upon retiring, Cavanagh held the all-time outfield appearances record in championship football, with 89 appearances for his county. He also made a record number of appearances for his county.

His brother Colm has also played for Tyrone.

Cavanagh graduated from the University of Ulster in 2004 with a First Class Honours Degree in accountancy. He has since gone on to follow a career in accountancy.

Cavanagh was an integral part of the Tyrone Minor Team that won the All-Ireland Minor Championship in 2001. He also won two Ulster Minor Championships with the county. He went on to win two Ulster Under 21 Championships in 2002 and 2003.^{[citation needed]}

At school level, he won the Ulster Colleges Championship, the MacRory Cup in 2000, with Saint Patrick's Grammar School, Armagh, and was named an Ulster Colleges All Star after scoring the decisive goal in the final.

Cavanagh made his Tyrone Senior debut in 2002, against neighbouring rivals, and eventual All Ireland Champions, Armagh scoring a goal which earned Tyrone a replay. He was also a member of the squad that won Tyrone's first ever National League title.