Anorexia may refer to:
Eating conditions
- Anorexia (symptom), the symptom of poor appetite whatever the cause
- Anorexia nervosa, an eating disorder of excessive weight loss and usually undue concern about body shape
- Anorexia mirabilis, people who would starve themselves, sometimes to the death, for the sake of piety.
Relationships
- Sexual anorexia, a lack of "appetite" for romantic-sexual interaction
Music
- Anorexia Nervosa (band), a French symphonic black metal band
- Anorexia Nervosa, a two-part album by the band Showbread