Preen may refer to:
Birds edit
- Preening, personal grooming of a bird's feathers especially by using its beak
- Preen gland, also called the uropygial gland, an oil gland found in many bird species
- Preen oil, an oil made by the uropygial gland found in many bird species
Products edit
- Preen, a trade name for trifluralin
Surname edit
- Garyn Preen (born 1991), Welsh footballer
- Alan Preen (born 1935), former sportsman who played Australian rules football