To provide a chair capable of reducing labor required for the position adjustment of a headrest and being easily used by a medical attendant or the like.

This chair 101 with the headrest is provided with the headrest upper and lower position adjustment mechanism 103 of a direct acting type, the headrest front and back position adjustment mechanism 105 of the direct acting type and a headrest upper and lower angle adjustment mechanism 107. By making the headrest upper and lower position adjustment mechanism 103 and the front and back position adjustment mechanism 105 to the direct acting type, the movement of the mechanism is simplified, predictability is increased, and thus, the position adjustment of the headrest is facilitated.