1964–65 Nationalliga B season

The 1964-65 Nationalliga B season was the 18th season of the league as the second-level of Swiss ice hockey. HC La Chaux-de-Fonds won the championship and qualified for the National League A's relegation round.

Final

 * HC La Chaux-de-Fonds - HC Ambrì-Piotta 2:1 Series