In political science, the terms radical right, reactionary right and populist right have been used to refer to the range of nationalist, right-wing to far-right parties that have grown in support since the late 1970s in Europe. Populist right groups have shared a number of causes, which typically include opposition to globalisation and immigration, criticism of multiculturalism, and opposition to the European Union, but do not oppose democracy.

Far-right politics, or right-wing extremism, is a spectrum of political thought that tends to be radically conservative, ultra-nationalist, and authoritarian, often also including nativist tendencies. The name derives from the left–right political spectrum, with the "far right" considered further from center than the standard political right.