An Office Manager is a salaried employee charged with the general administrative responsibilities of any given office of a corporation. At the least this means responsibility for all paperwork, including its filing and retention over time, and the supervision of the staff doing it. It can also include planning and controlling any expenditure that has do to with office work, including computer systems, and hiring and firing office staff.

In small and medium sized companies the task is often given to the corporation's accountant. In large companies there will often be several offices in several geographical areas, and each one will have an office manager.