A steering system comprising: a steering shaft to one end of which a steering member is coupled; a column jacket that holds the steering shaft, has a central axis along an axial direction of the steering shaft, and is movable in an intersecting direction vertically intersecting the axial direction; a bracket that is fixed to a vehicle body, includes a pair of side plates disposed so as to face each other in an orthogonal direction orthogonal to the intersecting direction and the axial direction, and supports the column jacket so that the column jacket is movable between the pair of the side plates; an insertion shaft that extends in the orthogonal direction, that has an end portion at each of outer sides of the pair of the side plates in the orthogonal direction, to which an operation member that is operated to allow and prevent movement of the column jacket with respect to the bracket is attached, and that is movable together with the column jacket in the intersecting direction; a first tooth row that is supported by one of the side plates and includes a plurality of first teeth arranged at a predetermined pitch in the intersecting direction; a second tooth row that is supported by the other of the side plates and includes a plurality of second teeth arranged at the predetermined pitch in the intersecting direction; a third tooth configured to mesh with the first teeth, supported by one end portion of the end portions of the insertion shaft, and configured to come into and out of contact with the first tooth row in accordance with operation of the operation member; and a fourth tooth configured to mesh with the second teeth, supported by the other end portion of the insertion shaft, and configured to come into and out of contact with the second tooth row in accordance with operation of the operation member, characterized in that either one pair of tooth tips, out of a pair of a tooth tip of each first tooth and a tooth tip of the corresponding second tooth and a pair of a tooth tip of the third tooth and a tooth tip of the corresponding fourth tooth, are located in an identical position in the intersecting direction, and the other pair of tooth tips are displaced from each other by a length that is smaller than the predetermined pitch in the intersecting direction. a steering shaft to one end of which a steering member is coupled; a column jacket that holds the steering shaft, has a central axis along an axial direction of the steering shaft, and is movable in an intersecting direction vertically intersecting the axial direction; a bracket that is fixed to a vehicle body, includes a pair of side plates disposed so as to face each other in an orthogonal direction orthogonal to the intersecting direction and the axial direction, and supports the column jacket so that the column jacket is movable between the pair of the side plates; an insertion shaft that extends in the orthogonal direction, that has an end portion at each of outer sides of the pair of the side plates in the orthogonal direction, to which an operation member that is operated to allow and prevent movement of the column jacket with respect to the bracket is attached, and that is movable together with the column jacket in the intersecting direction; a first tooth row that is supported by one of the side plates and includes a plurality of first teeth arranged at a predetermined pitch in the intersecting direction; a second tooth row that is supported by the other of the side plates and includes a plurality of second teeth arranged at the predetermined pitch in the intersecting direction; a third tooth configured to mesh with the first teeth, supported by one end portion of the end portions of the insertion shaft, and configured to come into and out of contact with the first tooth row in accordance with operation of the operation member; and a fourth tooth configured to mesh with the second teeth, supported by the other end portion of the insertion shaft, and configured to come into and out of contact with the second tooth row in accordance with operation of the operation member, characterized in that either one pair of tooth tips, out of a pair of a tooth tip of each first tooth and a tooth tip of the corresponding second tooth and a pair of a tooth tip of the third tooth and a tooth tip of the corresponding fourth tooth, are located in an identical position in the intersecting direction, and the other pair of tooth tips are displaced from each other by a length that is smaller than the predetermined pitch in the intersecting direction.