The Christian Conservative Social Union (Lithuanian: Krikščionių konservatorių socialinė sąjunga, KKSS) was a centre-right, Christian-conservative political party in Lithuania.
The party was established as the Union of Moderate Conservatives (Nuosaikiųjų konservatorių sąjunga) in 2000 as a breakaway from the Homeland Union.[1] Initially led by the former prime minister, Gediminas Vagnorius, it contested the 2000 elections, receiving 2% of the vote and winning a single seat.
By the 2004 elections, the party had been renamed the Christian Conservative Social Union. It received again 2.0% of the vote, but lost its single seat in the Seimas.
On 23 January 2010, it merged into the Christian Party.