The 1963–64 1.Lig was the sixth season of professional football in Turkey. The league was re-branded as the 1.Lig following the creation of a second division known as the 2.Lig. Fenerbahçe won their third title, becoming the first club to do so.[1][2]Güven Önüt, forward for Beşiktaş, finished top scorer of the league with 19 goals. He was the first player in club history to finish top scorer.[3]
The Turkish Football Federation claimed that the result of the Karşıyaka and Kasımpaşa match, which originally finished as a 4–0 win for Karşıyaka, was fixed beforehand. As a result, the TFF changed the win to a 0–3 loss for Karşıyaka. The club was penalized 3 points. The change dropped Karşiyaka into the relegation zone, and they were relegated to the 2.Lig. Karşıyaka challenged the decision, and took the TFF to civil court. Two years later, the civil court overturned the TFF's ruling, and Karşıyaka were allowed to join the 1.Lig again in 1966–67.
Source: [citation needed] Rules for classification: Tiebreaker is the goal ratio (average of goals scored to goals allowed) (C) Champions; (R) Relegated