Aven, in the Bible, abusive name applied to towns: to Bethel (see Beth-aven); to Heliopolis in Egypt in the Book of Ezekiel; and to some other place, traditionally Baalbek, in the Book of Amos.

Aven may refer to:

• Aven River in Brittany, France
• Aven, a fictional bird race in Magic: The Gathering
• Pitch (vertical space), in rock or ice climbing
• Yellow Avens, a flowering plant of the Geum genus, native to most of the temperate Northern Hemisphere
• Asexuality Visibility and Education Network, founded by David Jay