AIF, A.I.F., AiF or aif may refer to:

• Argumenty i Fakty (AiF), a Russian newspaper
• Australians in Film (AiF), a Los Angeles-based organisation for the promotion of Australian actors and filmmakers
• Aspen Ideas Festival, an annual event in U.S.

• American India Foundation, a nonprofit American organization
• The American Ireland Fund, an American charity
• Amsterdam Institute of Finance, a Dutch financial training institute
• Asian Institute of Finance, a nonprofit Malaysian financial organization
• Association internationale des femmes, a former feminist organization
• Atlantic Innovation Fund, a funding program of the Atlantic Canada Opportunities Agency
• Atomic Industrial Forum, a former industrial policy organization
• Australians in Film (AiF), a Los Angeles-based organisation for the promotion of Australian actors and filmmakers
• Financial Information Authority (Vatican City), (Autorità di Informazione Finanziaria)

• First Australian Imperial Force, an expeditionary force during World War I
• Second Australian Imperial Force, an expeditionary force during World War II

• Apoptosis-inducing factor, a flavoprotein
• Arm Image Format, an object code format in computer programming
• .aif, the Audio Interchange File Format
• Author Impact Factor, an author-level metric

• American Indoor Football, a professional indoor football league
• Arbeidernes Idrettsforbund ("Workers' Federation of Sports"), a former Norwegian sporting organization
• Several Swedish sports clubs have AIF in the title: see All pages with titles containing AIF

• Alternative investment fund
• Argument Interchange Format, a means of exchanging argument resources between research groups

• ÅIF (disambiguation)
• All pages with titles containing AIF

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