Frydenlund is a surname. Notable people with the surname include:
Bård frydenlund (born 1972), Norwegian historian Knut Frydenlund (1927–1987), Norwegian diplomat and politician Olaf Frydenlund (1862–1947), Norwegian rifle shooter Richard Frydenlund (1891–1981), Norwegian wrestler Thorbjørn Frydenlund (1892–1989), Norwegian wrestler