Kaj de Rooij is a 26-year-old professional football player from NED. He currently plays for PEC Zwolle, wearing the number 22 shirt. He plays primarily as a Forward. He stands at 176cm tall and weighs 74kg. His preferred foot is Right. His current market value is estimated at 1000K €.

His most recent move was a from PEC Zwolle to Free player on 2026-07-01.

In the Netherlands Eredivisie 2025-2026 season, Kaj de Rooij scored 5 goals and provided 5 assists across 24 appearances, averaging 0.2 goals per game with 22 shots attempted and 8 on target.