Yōsuke Saitō (斎藤 陽介, Saitō Yōsuke), born April 7, 1988 in Tokyo, Japan) is a Japanese football player, currently playing for Slutsk in the Belarusian Premier League.
Before the start of the 2012 Latvian Higher League season Saito signed a contract with FB Gulbene. Soon after joining he made a great impact, scoring all of his team's goals in the first round of the championship. All in all he scored 9 goals in 14 matches for Gulbene and was the club's leading scorer. In June 2012 Saito went on trial with the Azerbaijan Premier League club Khazar Lankaran, but he wasn't offered a contract then. On July 1, 2012 he signed a contract with the Latvian Higher League club FK Ventspils. Scoring 6 goals in 17 matches for Ventspils, all in all, Saito became the second top-scorer of the Latvian Higher League in 2012 with 15 goals in 31 matches.
After the successful season in Ventspils Saito moved to the Russian National Football League club FC Ufa in February 2013.