O´Cahan / Cahan	MacCain / McCain / Cain / Kain	Kane / Keane	Kane / Keane	Kane

MacCain / McCain / Cain /Kain / Kane / Ó Catháin / MacCathain / O Cahan / Keane

Origin: Irish.

Spelling variations include: Cain, McCain, Caine, Kane, Kain, Cahan, O'Cahan, Kean, Keane, O'Keane, Ceane, Cean, Kahan, O'Kean, O'Kane, O'Kaine, Kaine, Keann, Cainn, Cainne, Kainn, Cahann, O'Cain and many more.

O´Kane (or Kane) is a famous name of both Scottish and Irish origin. The MacKanes hailed from Scotland and were derived from the McKean clan. The O'Kanes are from the Province of Ulster and derive from the O'Cathain Sept. It is in Ulster that the majority of descendants can still be found.