Louis d'Ussieux, real name Louis Dussieux, (30 March 1744 in Angoulême[1][2] – 21 August 1805 in château des Vaux, Eure-et-Loir) was an 18th-century French writer, historian, journalist, translator and agronomist.
In 1777, he was among the founders and editors of the Journal de Paris and collaborated with the Collection universelle des mémoires particuliers relatifs à l'histoire de France.
A Girondin, he was banned before being elected in 1795 a member of the Council of Ancients until 1799.