Valentyn Slyusar (born 15 September 1977) is a former Ukrainian footballer who played as a midfielder.

Notably he has played for Ukrainian Premier League clubs FC Metalurh Donetsk, and Zakarpattia Uzhhorod.

After the Ukrainian Premier League 2008–09 season Slyusar was found positive in random drug testing and will be suspended for two months.

[1] Slyusar was first called up to the Ukraine national football team by Oleksiy Mykhailychenko for a friendly match against Norway on 19 November 2008.

The squad mainly consisted of domestic-based players, with the exception Vitaliy Fedoriv.