Oligarch may refer to:

Authority

* Oligarch, a member of an

oligarchy Oligarchy (; ) is a conceptual form of power structure in which power rests with a small number of people. These people may or may not be distinguished by one or several characteristics, such as nobility, fame, wealth, education, or corporate, r ...

, a power structure where control resides in a small number of people *

Oligarch (Kingdom of Hungary) An oligarch or provincial lord ( hu, tartományúr; formerly the term ''petty king'' was also used) was a powerful lord who administered huge contiguous territories through usurping royal prerogatives in the Kingdom of Hungary in the late 13th and ...

, late 13th–14th centuries *

Business oligarch A business oligarch is generally a business magnate who controls sufficient resources to influence national politics. A business leader can be considered an oligarch if the following conditions are satisfied: # uses monopolistic tactics to domina ...

, wealthy and influential businessmen **

Russian oligarch Russian oligarchs (Russian language, Russian: олигархи, Romanization of Russian, romanized: ''oligarkhi'') are business oligarchs of the Post-Soviet states, former Soviet republics who rapidly accumulated wealth in the 1990s via the Priv ...

, business oligarchs in the era of Russian privatization in the 1990s **

Ukrainian oligarchs Ukrainian oligarchs (Ukrainian: українські олігархи, romanized: ukrayins'ki oliharkhy) are business oligarchs who emerged on the economic and political scene of Ukraine after the 1991 Ukrainian independence referendum. This peri ...

, business oligarchs after Ukrainian independence in 1991

Other uses

* ''

The Oligarchs ''The Oligarchs: Wealth and Power in the New Russia'' is a 2001 non-fiction book written by Pulitzer Prize-winning author and ''Washington Post'' contributing editor David E. Hoffman. The book chronicles events of the transitional period in Russ ...

'', a 2001 non-fiction book by David E. Hoffman *

Oligarch planet Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and continued at the start of the 20th with Percival Lowell's ...

, hypothetical planets beyond Neptune *

Old Oligarch The "Constitution of the Athenians" ( grc-gre, Ἀθηναίων πολιτεία, ''Athenaion Politeia''), also known as "On the Athenian State", is a short treatise on the government and society of classical Athens. It was preserved amongst the m ...

, author of a "Constitution of the Athenians" {{disambiguation