Democrazia Solidale (English: Solidary Democracy, Demo.S) is a centre-left Christian-democratic political party in Italy. The party's leader, Lorenzo Dellai, a former President of Trentino, has described Demo.S as a "Christian-social" party. Demo.S maintains solid relations with the Democratic Party and a number of minor parties/groups of the Christian left, notably including the Democratic Centre (with which Demo.S forms a joint parliamentary group in the Chamber of Deputies named For Italy), the Christian Popular Union (active mainly in Sardinia) and, in Trentino, the Union for Trentino.