See also: iler English Proper noun Iler (plural Ilers) A surname. Statistics According to the 2010 United States Census, Iler is the 15889th most common surname in the United States, belonging to 1830 individuals. Iler is most common among White (92.35%) individuals. Anagrams Irel., Lier, Reil, Riel, lier, lire, riel, rileWikiwand - on Seamless Wikipedia browsing. On steroids.