Family name Іл'Я (Іл'Я 
) , all around the world, is an extremely rare last name. The last name Іл'Я is characteristic of Eastern Europe, particularly Ukraine, where it is an extremely rare surname. Much more frequently, Іл'Я is the forename as well as the last name.
Сітко, Ширяєв, Шкирка, Масонов, Міліцин, Буркало, Пронько, Шамілішвілі, Петренко, Востриков, Георгіївський, Тимошенко, and Муллахметов