Loeillet may refer to:
Jean Baptiste Loeillet of Ghent (1688–c. 1720), composer Jean-Baptiste Loeillet of London (1680–1730), flutist, oboist, harpsichordist, and composer. The two Jean-Baptiste Loeillets were cousins Jacques Loeillet (1685–1748), oboist and composer, younger brother of London Loeillet 13011 Loeillet, a Main-belt Asteroid