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The 1963 Harelbeke–Antwerp–Harelbeke was the sixth edition of the E3 Harelbeke cycle race and was held on 16 March 1963. The race started and finished in Harelbeke. The race was won by Noël Foré.
The race was known as Harelbeke–Antwerp–Harelbeke (French: Harelbeke–Anvers–Harelbeke) for the first twelve editions. In 1970, the race became known as the E3, after the Belgian road which is now known as the E17.