| Language | English |
|---|---|
| Origin | |
| Language | Irish |
| Word/name | Ó Cadhla |
| Meaning | "descendant of Cadhla" |
Quealy or Quealey is a surname in the English language. It is derived from one of several names in Irish: Ó Cadhla and Ua Caollaidhe of Uí Bercháin (Ibercon) in Osraige.