IYF may refer to:
Events International Istanbul Youth Forum, an annual conference at Robert College, Istanbul, Turkiye International Year of Freshwater (2003), see List of environmental dates International Youth Forum at the World Youth Day 1995
Groups, organizaztions, businesses International Youth Federation, the youth division of the U.N. International Union for Conservation of Nature and Natural Resources (IUCN); see History of youth work iShares Dow Jones US Financial (stock ticker: ); see List of American exchange-traded funds
Other uses "I.Y.F.", a song by Believer from the 1987 mixtape The Return, featured on the 1990 album Sanity Obscure
See also
LYF