SOR Libchavy (Sdružení Opravárenství a Rozvoje) is a Czech manufacturer of buses for urban, intercity and tourist traffic and trolleybuses.

The manufacturer was established with business intent to focus on the design, production, sale and service of buses.

The company management decided to develop a 7.5 m long bus which would combine SOR's own body and chassis with engine-gearbox assembly from prominent world manufacturers.

The production of buses was introduced by Jaroslav Trnka, the former director of Karosa Vysoké Mýto, and his team.

SOR Libchavy is currently producing about 750 vehicles per year and is the second largest manufacturer of buses in the Czech Republic, behind Iveco-Karosa.