Von Arx is a surname. Notable people with the surname include:
Cäsar von Arx (1895–1949), Swiss dramatist Casimir von Arx (1852–1931), Swiss politician Jan von Arx (born 1978), Swiss ice hockey player Jeffrey P. von Arx (born 1944), American academic Kurt von Arx (born 1937), Swiss field hockey player Reto Von Arx (born 1976), Swiss ice hockey player