Fillet

Fillet may refer to:
 * Annulet (architecture), part of a column capital, also called a fillet
 * Fillet (aircraft), a fairing smoothing the airflow at a joint between two components
 * Fillet (clothing), a headband
 * Fillet (heraldry), diminutive of the Chief (heraldry)
 * Fillet (cut), a piece of meat
 * Fillet (geology), a feature on the surface of the Moon
 * Fillet (mechanics), the filling of an interior corner
 * Fillet (picture framing), a small piece of moulding which fits inside a larger frame, also known as a "slip"
 * Fillet (redaction), editing, to cut out letters of a word or name to prevent full disclosure (e.g. "W————m P————t" for "William Pitt")
 * Fish fillet