Markus Valkna is a 24-year-old professional football player from EST. He currently plays for Viimsi JK, wearing the number 29 shirt. He plays primarily as a Defender.

His most recent move was a from Viimsi JK to Viimsi JK U21 on 2026-01-01.

Throughout the Estonian Esiliiga 2025, Markus Valkna featured in 31 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.