Trestle or Trestles may refer to:
- Structures and structural elements:
- Trestle support, the structural element that supports a trestle bridge, trestle desk, trestle table, or similar structures
- Trestle bridge, a bridge composed of trestle support elements
- Trestles Bridge, a railroad viaduct in California
- Trestle desk, a desk supported by trestle support elements
- Trestle table, a table supported by trestle support elements
- Trestle (mill), part of a post mill consisting of a structure of trestle support elements
- Trestle tree, a structure that is part of a traditional square rigged sailing ship's top
- Trestle (heraldry), a charge in heraldry depicting a three-legged tripod traditionally used as a stool or table support
- Trestles (surfing), a surfing location in California with a name that refers to a nearby trestle bridge structure
- Trestle (also known as ATLAS-I), a non-nuclear electromagnetic pulse test facility for aircraft supported by the world's largest trestle structure made entirely of wood and glue