Christian of Brieg-Legnica (German: Christian von Liegnitz-Brieg, Polish: Chrystian Brzeski-Legnicki, Czech: Kristián Brežsko-Lehnický; 19 April 1618 in Olawa – 28 February 1672 in Olawa) was a Duke of Legnica (during 1653-1654 and 1663-1664 with his brothers), Brzeg (during 1639-1654 with his brothers), Wolów (during 1653-1654 with his brothers, then alone) and Olawa (during 1639-1654 with his brothers, then alone).
Since 1664, he was the sole ruler as Duke of Legnica-Brzeg-Wolów-Olawa.
He is descended from the Legnica branch of the Silesian Piasts dynasty.
He was the seventh but third surviving son of John Christian, Duke of Brzeg-Legnica-Wolów-Olawa, by his first wife Dorothea Sybille, daughter of John George, Elector of Brandenburg.