A fluid control device (101) includes a vibrating plate (141) including a first main surface and a second main surface, a driver (142) that is provided on the first main surface of the vibrating plate and vibrates the vibrating plate, and a plate (151, 451) that is provided on the second main surface of the vibrating plate and has a hole (152) provided thereon. At least one of either the vibrating plate or the plate is positioned between the hole and a region of the vibrating plate facing the hole, and includes a projection (143) projecting in a direction intermediate between the hole and the region of the vibrating plate facing the hole.
