The 1964 European Nations' Cup round of 16 was the second round of the qualifying competition for the 1964 European Nations' Cup. It was contested by the thirteen winners from the preliminary round, along with Austria, Luxembourg and the Soviet Union, who had received a bye. The winners of each of eight home-and-away ties progressed to the quarter-finals. The matches were played in 1963.
See main article: 1964 European Nations' Cup qualifying preliminary round.
Each tie winner progressed to the round of 16. The round of 16 was played in two legs on a home-and-away basis. The winners of the round of 16 would go through to the quarter-finals.
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The eight matches took place over two legs, taking place in 1963.
Spain won 2–1 on aggregate and advanced to the quarter-finals.----Sweden won 3–2 on aggregate and advanced to the quarter-finals.----Denmark won 4–1 on aggregate and advanced to the quarter-finals.----Luxembourg won 3–2 on aggregate and advanced to the quarter-finals.----Republic of Ireland won 3–2 on aggregate and advanced to the quarter-finals.----France won 3–2 on aggregate and advanced to the quarter-finals.----Soviet Union won 3–1 on aggregate and advanced to the quarter-finals.----Hungary won 5–4 on aggregate and advanced to the quarter-finals.