Carlton Curlieu, in the Gartree Hundred of Leicestershire, is a partly Scandinavianized form of Old English Ceorlenatun, from Old English ceorl (ceorlena genitive plural, Old Norse karl, genitive plural karla) ‘a freeman of the lower class, a peasant’ combined with Old English tun ‘an enclosure; a farmstead; a village; an estate’.
The feudal affix Curlieu is the family name of William de Curley who held the manor in 1253.