Tween may refer to:

• Tween, in J. R. R. Tolkien's The Fellowship of the Ring, a hobbit between the ages of 20 and 32.
• Tween, a term used in Star, Bright (1952) by Mark Clifton to describe merely ordinary geniuses.
• Polysorbate detergents such as Tween 20 and Tween 80.
• Preadolescence, the stage between middle childhood and adolescence in human development, generally in the age range of 8 to 12 years of age.
• Tweening, in animation, intermediate frames often added by an assistant animator or by computer.
• Tween Brands, a company specializing in female clothing for ages 7-14.

See also

• Teen
• Threen
• Tweener