IDRF may refer to:

• International Development and Relief Foundation, Canadian charity for raising funds for Muslim causes around the world
• International Diving Regulators Forum
• India Development and Relief Fund, American charity that supports development projects in India

• Finnish municipal election, 2000
• Finnish municipal election, 2004
• Finnish municipal election, 2008
• Finnish municipal election, 2012
• Finnish mythos
• Finnish National Defence University
• Finnish National Hockey League
• Finnish nationalism
• Finnish national road 12
• Finnish national road 2
• Finnish national road 5
• Finnish National road 5
• Finnish national road 8
• Finnish National Road Race Championships
• Finnish National Society Hall
• Finnish Native Religion
• Finnish Nature Heritage Foundation
• Finnish Neopaganism
• Finnish neopaganist
• Finnish numbers
• Finnish Operations Research Society
• Finnish Organization of Canada
• Finnish parliamentary election 2007
• Finnish parliamentary elections 2011
• Finnish parliamentary elections, 2011