Ilar

Ilar (the Welsh, and Croatian, form of the masculine given name Hilary) may refer to:


 * Saint Ilar, a 6th-century Welsh saint
 * Hilary of Poitiers (4th century), bishop of Poitiers in France, in Welsh sources
 * Saint Hilarion (4th century), an Egyptian monk, in Croatian sources
 * Ilar (hundred), a hundred of Cardiganshire named for Llanilar
 * Llanilar ("St Ilar's")
 * International League of Associations of Rheumatology (ILAR)
 * Institute for Laboratory Animal Research