The Arimofa was a German automobile manufactured between 1921 and 1922 by Ari-Motorfahrzeugbau GmbH of Plauen, Vogtland.

The company began by producing cyclecars with a 12hp Steudel twin-cylinder engine; these were built in limited numbers before Arimofa turned to building motorcycles. Between 1923 and 1925 the same company produced the Ari two-stroke motorcycle.