The Czech National Socialist Party (Czech: Česká strana národně socialistická), abbreviated to ČSNS 2005, was a centre-left nationalist political party in the Czech Republic. Founded in 2005 by members of the Czech National Social Party because of financial problems of that party, ČSNS 2005 was committed to the heritage of the First Republic Czechoslovak National Socialist Party, party of Edvard Beneš or Milada Horáková. The Czech National Socialist Party was a Eurosceptic party and cooperated with the alliance Sovereignty – Jana Bobošíková Bloc.