He plays primarily as a Defender. His preferred foot is Right. His current market value is estimated at 125K €.

His most recent move was a Loan from Doxa Katokopias to APOEL Nicosia on 2025-06-30.

Throughout the UEFA European U21 Championship qualification 2025-2027, Konstantinos Giannakou featured in 5 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.