The New Union (Social Liberals) (Lithuanian: Naujoji sąjunga (socialliberalai), NS) was a social-liberal[4] political party in Lithuania.

The party was formed in 1998 on a basis of Artūras Paulauskas presidential campaign team.

In 2000,it formed a coalition government with the Liberal Union (along with Lithuanian Centre Union and Modern Christian Democrats), but after disagreements between two, in 2001, a new coalition with the Lithuanian Social Democratic Party (LSDP) was formed.

After these elections, a coalition with the LSDP, the Labour Party and Lithuanian Popular Peasant Union (LVLS), which lasted up until summer of 2006.

At the 2008 parliamentary election, the party lost heavily, winning only one seat in the Seimas and only 3.64% of the national vote.