Clementia is a Roman goddess. It can also refer to:
People Clementia of Aquitaine (1048–1130), daughter of William VII, Duke of Aquitaine and Ermensinde de Longwy Clementia of Burgundy (c. 1078–c. 1133), countess of Flanders Clementia of Catanzaro (fl. 1145–1179/81), countess of Catanzaro in the Kingdom of Sicily Clementia of Hungary (1293–1328), queen of France and Navarre Clementia of Zähringen (died 1175), daughter of Conrad I, Duke of Zähringen and Clementia of Namur Clementia Killewald (1954–2016), German Benedictine nun, abbess and Doctor of the Church Clementia Taylor (1810–1908), English women's rights activist and radical Yannis Clementia (born 1997), Martiniquais football goalkeeper
Other uses Clementia, South Carolina, United States, a ghost town
See also De Clementia, essay written in AD 55–56 by Seneca the Younger