| Competition: | Tippeligaen |
| Season: | 1998 |
| Winners: | Rosenborg 13th title |
| Relegated: | Sogndal Haugesund |
| Continentalcup1: | Champions League |
| Continentalcup1 Qualifiers: | Rosenborg Molde |
| Continentalcup2: | UEFA Cup |
| Continentalcup2 Qualifiers: | Stabæk Viking Bodø/Glimt |
| Continentalcup3: | Intertoto Cup |
| Continentalcup3 Qualifiers: | Vålerenga |
| Matches: | 182 |
| Total Goals: | 671 |
| Biggest Home Win: | [1] (16 May 1998) (19 July 1998) |
| Biggest Away Win: | Sogndal 0–9 Stabæk (25 October 1998) |
| Highest Scoring: | (9 September 1998) |
| League Topscorer: | Sigurd Rushfeldt (27 goals) |
| Highest Attendance: | 21,230[2] Rosenborg 6–0 Moss (16 May 1998) |
| Lowest Attendance: | 841[3] Sogndal 0–9 Stabæk (25 October 1998) |
| Average Attendance: | 5,267 11.2% |
| Prevseason: | 1997 |
| Nextseason: | 1999 |
| Dates: | 13 April – 25 October |
The 1998 Tippeligaen was the 54th completed season of top division football in Norway. Each team played 26 games with 3 points given for wins and 1 for draws. Number thirteen and fourteen are relegated, number twelve has to play two qualification matches (home and away) against number three in the first division (where number one and two are directly promoted) for the last spot.
Note: Table lists in alphabetical order.
Kongsvinger won the play-offs against Kjelsås 7–2 on aggregate.
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| Rank | Player | Club | Goals | |
|---|---|---|---|---|
| 1 |  Sigurd Rushfeldt | Rosenborg | 27 | |
| 2 | Rune Lange | Tromsø | 20 | |
| 3 | Petter Belsvik | Stabæk | 19 | |
| Jostein Flo | Strømsgodset | 19 | ||
| 5 | Andreas Lund | Molde | 16 | |
| 6 |  Ríkharður Daðason | Viking | 15 | |
| 7 | Jahn Ivar "Mini" Jakobsen | Rosenborg | 14 |