Arion is a Romanian surname with roots in Greece. Notable persons with that surname include:
Anton I. Arion (1824–1897), Romanian politician Bryan Arion, Mexican actor and model Constantin C. Arion (1855–1923), Romanian politician Frank Martinus Arion (1936–2015), Curaçaoan poet, novelist, and language advocate George Arion (born 1946), Romanian crime writer Mihail Arion, Romanian diplomat Ruth Arion (1912–1998), German-Israeli painter and enamel artist Spiros Arion (born 1940), Greek professional wrestler