Oligarch

Oligarch may refer to:

Authority

 * Oligarch, a member of an oligarchy, a power structure where control resides in a small number of people
 * Oligarch (Kingdom of Hungary), late 13th–14th centuries
 * Business oligarch, wealthy and influential businessmen
 * Russian oligarch, business oligarchs in the era of Russian privatization in the 1990s
 * Ukrainian oligarchs, business oligarchs after Ukrainian independence in 1991

Other uses

 * The Oligarchs, a 2001 non-fiction book by David E. Hoffman
 * Oligarch planet, hypothetical planets beyond Neptune
 * Old Oligarch, author of a "Constitution of the Athenians"