A scroll compressor including a stationary scroll formed with a scroll wrap, an orbiting scroll formed with a scroll wrap, a rotating shaft for putting the orbiting scroll into an orbiting motion, a rotating bearing for rotatably supporting the rotating shaft on the stationary scroll, an orbiting scroll bearing provided at an eccentric shaft portion of the rotating shaft and operative to orbitably support a central portion of the orbiting scroll. A coupling transmits a torque of a driving shaft to the rotating shaft. The scroll compressor is compact based on the layout of a balancer. The orbiting scroll bearing is disposed at a central portion of the rotating shaft, and the coupling is provided with the balancer. The stationary scroll may be provided with ribs being formed therein with an oil passage for connection between a central oil passage formed in the rotating shaft and the exterior.