John Jackson (born January 4, 1965) is a former American football offensive tackle in the National Football League. Best known for his time as a member of the Pittsburgh Steelers. John was drafted out of Eastern Kentucky University, while at EKU. Jackson was a three-year starter and a two-time All-OVC selection at EKU under legendary head coach Roy Kidd. While he was at EKU, the Colonels won three OVC titles and he blocked for two of the top five career rushers in EKU history, Elroy Harris and James Crawford.