To provide a variable displacement compressor which improves the strength of a part in the vicinity of an engagement hole part in a swash ring, the durability of the swash ring, and the durability of a device, accordingly.

In the variable displacement compressor having a shaft, an annular swash ring which can be inclinedly rotated to the shaft, and a pivot pin engaged with an engagement hole formed in the radial direction of the swash ring to transmit the drive force from the shaft to the swash ring, a thickened part is provided on an outer side of the ring of the engagement hole.