A steering apparatus having inner and outer columns. The outer column includes a pair of side plate sections respectively extending in the axial direction, located on both sides in the width direction of the inner column, and has a column-side through hole that passes through in the width direction on one side of the inner column with respect to the height direction in a part in the axial direction thereof, and a column pressing section provided in at least one of the pair of plate sections and able to press the inner column in a direction away from the column-side through holes with respect to the height direction when displaced inward in the width direction, and a widening section in at least one of the pair of plate sections and pressed outward in the width direction via the inner column that is pressed by the column pressing sections.