An anti-vibration apparatus includes a first magnet unit arranged on a support target and including a first permanent magnet, and a second magnet unit including a pair of second permanent magnets. The pair of second permanent magnets is arranged to interpose the first permanent magnet without contact such that the same magnetic poles of the first and second permanent magnets oppose each other. Sizes of the first and second magnet units are set such that a force acting between the first and second magnet units in a direction perpendicular to a direction in which the first magnet unit supports the support target is zero in a relative positional range between the first and second magnet units.