Third Position is a revolutionary nationalist political ideology that emphasizes its opposition to both communism and capitalism. Advocates of Third Position politics typically present themselves as "beyond left and right", instead claiming to syncretize radical ideas from both ends of the political spectrum.

Third Positionists tend to advocate for the ownership of the means of producing goods and services to be distributed as widely as possible among the "productive members of society", seek alliances with separatists of ethnicity and race other than their own to achieve "separate but equal" ethnic and racial segregation, support national liberation movements in the least developed countries, and have recently embraced environmentalism and reconstructionist paganism.

Political scientists such as Roger Griffin, dismiss Third Positionist claims of being "beyond left and right" as specious. They argue that Third Positionism is in fact an ideological mutation of the neo-fascist right, which rejects both Marxism and liberalism for an ultranationalism that seeks to achieve a national rebirth by establishing a confederation of ethnically and racially homogeneous communities where ownership of productive property is distributed among all members. The main precursors of Third Position politics are National Bolshevism, a synthesis of nationalism and Bolshevik communism, and Strasserism, a radical, mass-action and worker-based form of Nazism.

Lyndon Hermyle LaRouche, Jr. (born September 8, 1922), also known as Lyn Marcus, is an American political activist and founder of the LaRouche movement. He has written on economic, scientific, and political topics, as well as on history, philosophy, and psychoanalysis. Journalists and government officials in China, Italy and Russia have credited LaRouche with forecasting that unrestricted financial speculation would cause the late-2000s financial crisis.

LaRouche was a presidential candidate eight times between 1976 to 2004, running once for his own U.S. Labor Party and campaigning seven times for the Democratic Party nomination. He was sentenced to 15 years' imprisonment in 1988 for conspiracy to commit mail fraud and tax code violations, and was released in 1994 on parole. Ramsey Clark, his chief appellate attorney and a former U.S. Attorney General, said that LaRouche was denied a fair trial. The Court of Appeals unanimously rejected the appeal.

Supporters of LaRouche call him a political leader in the tradition of Franklin D. Roosevelt. Commentators for The Washington Post and The New York Times have described him as a conspiracy theorist and a political extremist. Some have called him fascist or antisemitic, and a 1979 editorial in the New York Times characterized his movement as a 'cult'.Norman Bailey, formerly with the National Security Council, described LaRouche's staff in 1984 as one of the best private intelligence services in the world, while the Heritage Foundation, a think tank, wrote that he leads "what may well be one of the strangest political groups in American history."