Tjaden is a surname. Notable people with the surname include:
Janis Paige (1922–2024), born Donna Mae Tjaden, American actress and singer Olive Frances Tjaden (1904–1997), American pioneering woman architect Walter Tjaden (1906–1985), German film producer and sound engineer
See also Tjaden, a fictional character in the 1929 novel All Quiet on the Western Front