
Totalitarianism is a concept for a form of government or political system that prohibits opposition parties, restricts individual opposition to the state and its claims, and exercises an extremely high degree of control over public and private life. It is regarded as the most extreme and complete form of authoritarianism. In totalitarian states, political power has often been held by autocrats who employ all-encompassing campaigns in which propaganda is broadcast by state-controlled mass media.

A number of authors have carried out comparisons of Nazism and Stalinism in which they have considered the similarities and differences of the two ideologies and political systems, what relationship existed between the two regimes, and why both of them came to prominence at the same time. During the 20th century, the comparison of Nazism and Stalinism was made on the topics of totalitarianism, ideology, and personality cult. Both regimes were seen in contrast to the liberal West, with an emphasis on the similarities between the two.

The Emergency in India was a 21-month period from 1975 to 1977 when Prime Minister Indira Gandhi had a state of emergency declared across the country. Officially issued by President Fakhruddin Ali Ahmed under Article 352 of the Constitution because of the prevailing "internal disturbance", the Emergency was in effect from 25 June 1975 until its withdrawal on 21 March 1977. The order bestowed upon the Prime Minister the authority to rule by decree, allowing elections to be cancelled and civil liberties to be suspended. For much of the Emergency, most of Indira Gandhi's political opponents were imprisoned and the press was censored. Several other human rights violations were reported from the time, including a mass forced sterilization campaign spearheaded by Sanjay Gandhi, the Prime Minister's son. The Emergency is one of the most controversial periods of independent India's history.

Fascism is a form of far-right, authoritarian ultranationalism characterized by dictatorial power, forcible suppression of opposition, and strong regimentation of society and of the economy, which came to prominence in early 20th-century Europe. The first fascist movements emerged in Italy during World War I, before spreading to other European countries. Opposed to liberalism, democracy, Marxism, and anarchism, fascism is placed on the far right within the traditional left–right spectrum.

Human rights in Saudi Arabia are a topic of concern. The Saudi government, which enforces sharia law under the absolute rule of the House of Saud, have been accused of and denounced by various international organizations and governments for violating multiple human rights within the country. The totalitarian regime ruling the Kingdom of Saudi Arabia is consistently ranked among the "worst of the worst" in Freedom House's annual survey of political and civil rights. On 28 December 2020, the Criminal Court in Riyadh sentenced a prominent Saudi women's rights activist to nearly 6 years in prison, drawing a renewed attention to the kingdom's human rights issues. Qorvis MSLGroup, a U.S. subsidiary of Publicis Groupe, has been working with Saudi Arabia amidst its executions of political protesters and opponents for more than a decade to whitewash its record of human rights abuses.

Italian Fascism, also known as Classical Fascism or simply Fascism, is the original fascist ideology as developed in Italy by Giovanni Gentile and Benito Mussolini. The ideology is associated with a series of two political parties led by Benito Mussolini: the National Fascist Party (PNF), which ruled the Kingdom of Italy from 1922 until 1943, and the Republican Fascist Party that ruled the Italian Social Republic from 1943 to 1945. Italian Fascism is also associated with the post-war Italian Social Movement and subsequent Italian neo-fascist movements.

Juche is the official ideology of the Democratic People's Republic of Korea, described by the government as "Kim Il-sung's original, brilliant and revolutionary contribution to national and international thought". It postulates that "man is the master of his destiny", that the masses are to act as the "masters of the revolution and construction", and that by becoming self-reliant and strong, a nation can achieve true socialism.

"Orwellian" is an adjective describing a situation, idea, or societal condition that George Orwell identified as being destructive to the welfare of a free and open society. It denotes an attitude and a brutal policy of draconian control by propaganda, surveillance, disinformation, denial of truth (doublethink), and manipulation of the past, including the "unperson"—a person whose past existence is expunged from the public record and memory, practiced by modern repressive governments. Often, this includes the circumstances depicted in his novels, particularly Nineteen Eighty-Four but political doublespeak is criticized throughout his work, such as in Politics and the English Language.

The Prague Declaration on European Conscience and Communism was a declaration which was initiated by the Czech government and signed on 3 June 2008 by prominent European politicians, former political prisoners and historians, among them former Czech President Václav Havel and future German President Joachim Gauck, calling for "Europe-wide condemnation of, and education about, the crimes of communism." Much of the content of the declaration reproduced demands formulated by the European People's Party in 2004, and draws heavily on totalitarianism theory.

The Securitate was the popular term for the Departamentul Securității Statului, the secret police agency of the Socialist Republic of Romania. Previously, before the communist regime, Romanian secret police was called Siguranța Statului. It was founded on 30 August 1948, with help from the Soviet NKVD, while Romania was practically under the Red Army's occupation. Following the overthrow of Nicolae Ceaușescu in 1989, the new authorities assigned the various intelligence tasks of the DSS to new institutions.

The Taliban or Taleban, who refer to themselves as the Islamic Emirate of Afghanistan (IEA), is a Deobandi Islamist movement and military organization in Afghanistan, currently waging war within the country. Since 2016, the Taliban's leader has been Mawlawi Hibatullah Akhundzada.

Totalitarian architecture refers to the type of architecture or an architectural style approved by and often preferred by dictatorships and governments of totalitarian regimes, intended to strengthen and spread their ideology. The style of totalitarian architecture shows a preference for "classical symbolism and monumentality", drawing on simplified Neo-Classicism and, realism.