Arion hortensis, also known by its common name the "garden slug", "small striped slug" or "black field slug" is a species of small air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae, the roundback slugs.

Arion lusitanicus, also known by its common name Portuguese slug, is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae.

Spiros Arion born Spyridon Manousakis (born September 1940) is an Egyptian-born Greek former professional wrestler who had an extensive and successful career, mainly in Australia and the United States.