Matilda of Carinthia (Mathilde of Sponheim; died 13 December 1160 or 1161) was a daughter of Engelbert, Duke of Carinthia and his wife Uta of Passau. She married Theobald II, Count of Champagne in 1123. Her children with Theobald were: * Henry I, Count of Champagne * Theobald V, Count of Blois * Adela of Champagne * Elizabeth, wife of Roger III, Duke of Apulia and William Gouet IV * Mary, wife of Odo II, Duke of Burgundy * William White Hands * Stephen I of Sancerre * Agnes, wife of Reginald II, Count of Bar * Margaret, nun at Fontevrault * Matilda, wife of Rotrou IV, Count of Perche