ILF may refer to:
- Ilford Airport, the IATA code for the airport in Canada
- Industry Liaison Forum of the International AIDS Society
- International Lacrosse Federation
- International Lifeboat Federation now the International Maritime Rescue Federation
- Ilya Ilf, a Russian writer.
- Interactive Literature Foundation, the predecessor to the Live Action Roleplayers Association
- Institute for Law and Finance, graduate law school of the Johann Wolfgang Goethe University Frankfurt am Main, Germany
- International Literacy Foundation, an international charity founded in 2010 with the aim of tackling illiteracy
- Institut Lean France, non-profit organization that aim to promote lean thinking, member of the LGN (Lean Global Network)
- International Limb Fittings, a recurve bow limb attachment system.
- Islamabad Literature Festival, an annual international literary festival held in Islamabad, Pakistan