Hamm AG is a German worldwide manufacturer and marketer of road rollers based in Tirschenreuth, Germany.

Brothers Anton and Franz Hamm, who were gunsmiths, founded the company in 1878 to build agricultural equipment.

[1] In 1928, the company abandoned all other product lines to concentrate on road rollers.

Hamm produces the first all-wheel drive-all-wheel steering double-drum.

In 1999 the Wirtgen Group GmbH announced that it would purchase Hamm AG, and the transaction was completed in March 2000.