The 1998–99 North Carolina Tar Heels men's basketball team represented the University of North Carolina at Chapel Hill during the 1998–99 NCAA Division I men's basketball season.

The Tar Heels played their home games at the Dean Smith Center in Chapel Hill, North Carolina as members of the Atlantic Coast Conference.

After a third-place finish during the conference regular season, the Tar Heels advanced to the ACC tournament title game where they fell to Duke.

North Carolina received an at-large bid to the NCAA tournament as No.

3 seed in the West region, but were upset by Weber State in the opening round to finish 24–10 (10–6 ACC).