The 1965 1. divisjon was the 21st completed season of top division football in Norway.
The season was contested by 10 teams, and VÃÂ¥lerengen won their first championship.
VÃÂ¥lerenga's 27 points was at the time a record for most points in a season, one more than Lyn achieved in the previous season. Viking and Sandefjord BK were relegated to the 2. divisjon.
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