An armrest, in particular for an office chair, achieves improved handling and adjustability in an individual and in a particularly variable manner by providing a preferably height-adjustable armrest column, an arm support carrier which is mounted on the armrest column and which is rotatable about a first rotational axis, and an arm support which is mounted on the arm support carrier. The arm support is rotatable about a second rotational axis and is displaceable in a linear manner relative to the arm support carrier. The two rotational axes are spaced apart from one another.