Kristoffer Tonnessen is a 28-year-old professional football player from NOR. He currently plays for Start Kristiansand, wearing the number 19 shirt. He plays primarily as a Defender. He stands at 187cm tall and weighs 76kg. His preferred foot is Right. His current market value is estimated at 400K €.

His most recent move was a from Lillestrom to Start Kristiansand on 2026-01-29.

Throughout the International Club Friendly 2025, Kristoffer Tonnessen featured in 4 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.