Thomas Jackson (born 3 November 1946) is a Northern Irish former footballer, who played as a midfielder for Everton, Nottingham Forest and Manchester United.
He became a regular in the Glentoran side by the age of 21, and won league-winners' medals in 1967 and 1968 before signing for Everton in February 1968.
His performances as understudy to the likes of Alan Ball and Howard Kendall attracted the attention of other clubs and, after just 32 league appearances for Everton, Jackson was signed by Nottingham Forest in October 1970.
Forest were struggling for survival in the First Division, but Jackson still only managed to make 81 appearances, albeit scoring six goals.
The arrival of Brian Clough and the emergence of Martin O'Neill saw Jackson's opportunities become even fewer and further between, and he was granted a free transfer in the summer of 1975.