The Monarchist League may refer to:

• The International Monarchist League (also known as the Monarchist League) founded in 1943 and based in London, England
• The Australian Monarchist League, founded in 1943, affiliated with the IML until 1993
• The Monarchist League of Canada, founded in 1970 (unaffiliated with the above)
• The Monarchist League of New Zealand, founded in 1995 (unaffiliated with the above)
• The Vietnamese Constitutional Monarchist League

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