The following NASCAR national series were held in 1998:
- 1998 NASCAR Winston Cup Series - The top racing series in NASCAR.
- 1998 NASCAR Busch Series - The second-highest racing series in NASCAR.
- 1998 NASCAR Craftsman Truck Series - The third-highest racing series in NASCAR.
| Preceded by1997 in NASCAR | NASCAR seasons 1998 |
Succeeded by1999 in NASCAR |
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