The 1998 season of the 3. divisjon, the fourth highest association football league for men in Norway. Between 20 and 22 games (depending on group size) were played in 19 groups, with 3 points given for wins and 1 for draws. All group winners were promoted to the 2. divisjon, as well as some of the best runners-up. Tables Group 1 Manglerud Star – promoted Kvik Halden – promoted Sparta Kolbotn Oppegård Borre Mercantile Greåker Lisleby Tune – relegated Bækkelaget – relegated Hafslund – relegated Group 2 Ullensaker/Kisa – promoted Rælingen Raufoss 2 Vardal Skeid 2 Torp Selbak Toten Røa Kolbu/KK – relegated Gjelleråsen – relegated Lunner – relegated Group 3 Trøgstad/Båstad – promoted Moss 2 Grue Rygge Kongsvinger 2 Fjellhamar Askim Brandval Holter Sander – relegated Kjellmyra – relegated Nordby – relegated Group 4 Eidsvold Turn – promoted Lom Trysil Vang Skjetten 2 Lillehammer FK Vinstra Fart Eidsvold Brumunddal – relegated Follebu – relegated Sel – relegated Group 5 Asker – promoted Rjukan Snøgg Åmot Holmen Strømsgodset 2 Birkebeineren Fagerborg Frigg Kongsberg – relegated Bygdø – relegated Slemmestad/Bødalen – relegated Group 6 Skarphedin – promoted Fram Falk Eik-Tønsberg 2 Teie Halsen Flint Stathelle Langesund Skotfoss – relegated Storm – relegated Stokke – relegated Group 7 Tollnes – promoted Grim/Start 2 – promoted Kvinesdal Odd/Pors Lyngdal Våg Vindbjart Vigør Sørfjell Randesund – relegated Birkenes – relegated Rygene – relegated Group 8 Viking 2 – promoted Figgjo Skjold Rosseland Ganddal Hundvåg Bryne 2 Hana Madla – relegated Egersund – relegated Nærbø – relegated Varhaug – relegated Group 9 Ny-Krohnborg – promoted Kleppestø Åkra Hald Kopervik Odda Nord Trott Bremnes Torvastad – relegated Grannekameratene – relegated Sauda – relegated Group 10 Radøy – promoted Follese Vadmyra Lyngbø Florvåg Løv-Ham Kjøkkelvik Nordhordland Bjørnar Voss – relegated Austevoll – relegated Nymark – relegated Group 11 Florø – promoted Tornado – promoted Eid/Haugen Fjøra Dale Svelgen Sandane Høyang Jølster Stryn 2 – relegated Eikefjord Anga – relegated Group 12 Ørsta – promoted Spjelkavik Brattvåg Hødd 2 Bergsøy Stranda Åram/Vankam Velledalen og Ringen Langevåg Skodje Valder – relegated Hareid – relegated Group 13 Sunndal – promoted Vestnes Varfjell Surnadal Søya Bøfjord Ekko/Aureosen Bud Grykameratene Gossen Isfjorden/Langfjorden – relegated Kvass/Ulvungen – relegated Bryn – relegated Group 14 Tynset – promoted Tiller Varden Singsås Løkken Melhus Fram OIL/OIF 2 – relegated Selbu KIL/Hemne Røros – relegated Buvik – relegated Group 15 Namsos – promoted Levanger Nidelv NTHI Malvik