Oskari Väistö is a 21-year-old professional football player from FIN. He currently plays for SJK Seinajoen, wearing the number 5 shirt. He plays primarily as a Defender. His current market value is estimated at 150K €.

Throughout the Finnish Veikkausliiga 2025, Oskari Väistö featured in 31 matches, averaging 0.5 tackles, 0.5 interceptions, and 2.5 clearances per game, while blocking 0 shots per game.