KDU-ČSL, often shortened to lidovci, is a Christian-democratic political party in the Czech Republic. The party has taken part in almost every Czech government since 1990. In the June 2006 legislative election, the party won 7.2% of the vote and 13 out of 200 seats; but in the 2010 election, its vote share dropped to 4.4% and they lost all of its seats. The party regained its parliamentary standing in the 2013 legislative election, winning 14 seats in the new parliament, thereby becoming the first party ever to return to the Chamber of Deputies after previously dropping out.

Christian democracy is a political ideology inspired by Christian social teaching to respond to the challenges of contemporary society and politics.