Christian Gullager was a Danish-American artist specializing in portraits and theatrical scenery in the late 18th century. He worked in Boston, Massachusetts, New York, and Philadelphia.

Amandus Christian Gullager was born to Christian Guldager Prang and Marie Elisabeth Dalberg in Copenhagen. He trained at the Royal Danish Academy of Fine Arts where he was awarded a silver medal in 1780. Gullager moved to Boston by 1786. In 1792, Gullager established a drawing academy at his house on Tremont Hill in Boston. Gullager worked in Newburyport in 1786, in Boston from 1789 to 1797, in New York City from 1797 to 1798, in Philadelphia 1798–1805, and in New York again in 1806–07. He died during 1826 in Philadelphia and was buried at the Second Presbyterian Church Yard, Third and Arch Streets.