Family name Лиллей (Lilley 
, Лиллей 
) , globally, is a common cognomen. The cognomen Лиллей is characteristic of New Zealand, where it is quite a common surname, Isle of Man, and the United Kingdom, where it is quite a rare surname. In absolute terms, it most frequently occurs in the United States, the United Kingdom, and New Zealand. Very seldom, Лиллей is the forename as well as the last name.