Preen

Preen may refer to:

Birds

• Preen, 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
• Preen, a trade name for trifluralin

Surname

• Garyn Preen (born 1991), Welsh footballer
• Alan Preen (born 1935), former sportsman who played Australian rules football