Ifan () is one of several Welsh forms of the male given name Ieuan. Like the English name John, it ultimately derives from the Latin Johannes.
People named Ifan Ifan ab Owen Edwards (1895–1970), a Welsh academic, writer and film-maker Ifan Evans (born 1983), Welsh rugby union player Ifan Phillips (born 1996), Welsh rugby union player Ifan Meredith (born 1976), Welsh actor
Others William Evans (Wil Ifan) (1883–1968), a Welsh poet and Archdruid of the National Eisteddfod of Wales
See also Ifan (disambiguation) Rhys Ifans Evan Ianto Ieuan Ioan Iwan (name) Siôn