The name Kiely in Ireland is derived from the native Gaelic Sept O'Cadhla, taken from a Gaelic word meaning 'graceful'. This Sept was located in Counties Waterford and Limeick and it is here that the majority of descendants can still be found.

Origen: Irlandés. Se encontaron primero en Co. Waterford, donde tuvieron asiento desde epocas muy antiguas.

Variantes: Kiely, Keily, Keiley, Keilly, Kiley, Kily, Kiely, Kieley, Keeley, Keely, Queally, Quealy, Quelly, O'Keily, O'Keilly, O'Kiely y otros.