The 1998 All-SEC football team consists of American football players selected to the All-Southeastern Conference (SEC) chosen by the Associated Press (AP) and the conference coaches for the 1998 NCAA Division I-A football season.
The Tennessee Volunteers won the conference, beating the Mississippi State Bulldogs 24 to 14 in the SEC Championship game. The Volunteers then won the National Championship game over the Florida State Seminoles 23 to 16.
Kentucky quarterback Tim Couch was voted the AP SEC Offensive Player of the Year. Florida linebacker Jevon Kearse was voted AP SEC Defensive Player of the Year.