Gustav Isaksen is a 25-year-old professional football player from DEN. He currently plays for Lazio, wearing the number 18 shirt. At the international level, he represents Denmark. He plays primarily as a Forward. He stands at 181cm tall and weighs 68kg. His preferred foot is Both. His current market value is estimated at 17M €.

His most recent move was a Free from Midtjylland to Lazio on 2023-08-08. The reported fee was 13.4M €.

In the Serie A 2025-2026 season, Gustav Isaksen scored 3 goals and provided 1 assists across 23 appearances, averaging 0.1 goals per game with 32 shots attempted and 13 on target.