The invention relates to an adjusting system (1) for a seat (2), in particular a motor vehicle seat. A longitudinal axis (100), in which a person sitting on the seat (2) is facing, is defined for the seat (2), and a transverse axis (200) running perpendicularly to the longitudinal axis and a height axis (300) running perpendicularly to the transverse axis and the longitudinal axis are also defined. The adjusting system comprises at least one first bearing ring (3) which can be connected to the seat (2), at least one second bearing ring (4) which can be connected to a seat mounting, and a plurality of adjusting rings (6, 7, 8) which are connected to one another in a sequential manner and which are arranged between the first bearing ring (3) and the second bearing ring (4). The adjusting rings (6, 7, 8) can be rotated relative to one another in order to pivot the seat (2) selectively about the longitudinal axis (100), the transverse axis (200), and the height axis (300).