Neo-fascism is a post-World War II far-right ideology that includes significant elements of fascism. Neo-fascism usually includes ultranationalism, racial supremacy, populism, authoritarianism, nativism, xenophobia, and anti-immigration sentiment, as well as opposition to liberal democracy, social democracy, parliamentarianism, liberalism, Marxism, neoliberalism, communism, and socialism. As with classical fascism, it proposes a Third Position as an alternative to market capitalism.

Allegations that a group is neo-fascist may be hotly contested, especially when the term is used as a political epithet. Some post–World War II regimes have been described as neo-fascist due to their authoritarian nature, and sometimes due to their fascination with and sympathy towards fascist ideology and rituals.