The 2010–11 National League B season was the 64. season played in the National League B, Switzerland's second-tier professional ice hockey league, during 2010 and 2011.
HC La Chaux-de-Fonds won the regular season championship,[1] with a nine-point edge over second place EHC Olten.
The winner of the playoffs was EHC Visp, who won in the finals against Lausanne HC.
[1][2] Since 2007, the four top-ranked clubs have been allowed to choose an opponent from places 5-8 in the table for the quarter-finals.
The play-offs were played in a best-of-seven format.