Look up breech in Wiktionary, the free dictionary.
Breech may refer to:
- Breech (firearms), the opening at the rear of a gun barrel where the cartridge is inserted in a breech-loading weapon
- breech, the lower part of a pulley block
- breech, the penetration of a boiler where exhaust gases leave it
- breech birth, when the baby is born feet or bottom first
- breeches, an item of clothing covering the body from the waist down
- buttocks, or breech, the lower part of the human abdomen
