Amberg (8 April 1749 – 30 January 1815) was a Danish lexicographer.
He was born in Elsinore as a son of goldsmith Lars Amberg, a Norwegian immigrant to Denmark.
He was a brother of educator Herman Amberg.
He is known for his three-volume dictionary in German-Danish and Danish-German.
He was helped by his brother as well as Jacob Baden, and the volumes were published in 1787, 1797 and 1810.Amberg held other jobs besides making the dictionary; from 1795 to 1800 he was a controller at the Norwegian postal office in Copenhagen.
He also wrote minor texts, among others in the magazine Det nyeste Magazin af Fortællinger between 1779 and 1781.