Fourth Polish Republic

In the politics of Poland, the Fourth Polish Republic (IV Rzeczpospolita or IV RP) was a hypothetical plan for moral revolution and political change put forth in 1997 by the Polish conservative philosopher Rafał Matyja in the magazine "Nowe Państwo" ("New Country"). "Fourth Republic" was a political slogan used by the right-wing populist Law and Justice (PiS) party in the 2005 Polish parliamentary election.

According to PiS, the current Third Polish Republic is a post-communist creation whose very foundations must be changed to create a truly democratic state free of its past.

“IV RP”, along with its derivative, “V RP” (Fifth Polish Republic), has also been used by critics to satirize the concept of unnecessary constitutional changes made for arbitrary reasons.