How do you spell Kiernan in Irish?

There isn't a single, universally accepted Irish spelling for the name Kiernan. The spelling would depend on the intended pronunciation and the specific dialectal variations. However, some possibilities, based on likely etymologies, include:

* Ciarán: This is the most common and likely option, as it's a well-established Irish name meaning "dark haired" or "charitable".

Other variations might exist depending on the individual's family history and preferred spelling. Ciarán is the safest and most accepted option.