| Competition: | Campeonato Brasileiro Série C |
| Season: | 1998 |
| Winners: | Avaí |
| Promoted: | Avaí São Caetano |
| Matches: | 388 |
| Total Goals: | 1034 |
| Biggest Home Win: | Confiança 7-0 Treze (August 9, 1998) Anapolina 7-0 Alvorada (August 16, 1998) Ferroviário 7-0 Cori-Sabbá (September 28, 1998) |
| Biggest Away Win: | Alvorada 0-5 Anapolna (September 27, 1998) |
| Highest Scoring: | Ferroviário 4-7 Fortaleza (September 6, 1998) |
| Prevseason: | 1997 |
| Nextseason: | 1999 |
The football (soccer) Campeonato Brasileiro Série C 1998, the third level of Brazilian National League, was played from August 8 to December 6, 1998. The competition had 66 clubs[1] and two of them were promoted to Série B.