Answer
No, Oleg Blokhin never won the FIFA World Player of the Year award. The award was established in 1991, a year after Blokhin had retired from playing professional football. During his playing career, he achieved notable successes, winning the European Cup with Dynamo Kyiv in 1975, and earning the Ballon d'Or in 1975, which was the highest individual honor for European footballers at that time.