1990-91 Regionalliga season

The 1990-91 Regionalliga season was the 17th season of the Regionalliga as the fourth-level of ice hockey in Germany. Deggendorfer EC won the championship.

Regionalliga South

 * Der Kulmbacher EC war nach dem 5. Spieltag wegen zweimaligen Nichtantretens ausgeschlossen worden.

Group B
5th place game: EV Moosburg - ERC Ingolstadt  0:7   3:10

Play-Off
EC Dillingen - EV Wiesbaden   16:7   14:4 EHC Trier - EC Bad Nauheim Ib 18:8

EHC Trier - EC Dillingen      13:8

Qualification
ESC Wedemark - EHC Neuwied 15:4; 9:6

Semifinals
ESG Esslingen - EV Weiden 3:10; 6:10

Herforder EG - ESC Wedemark 10:10; 11:5

Final
EV Weiden - Herforder EG 12:5; 9:7