Ó Cléirigh
O'Cleary or O'Clery is the surname of a Gaelic Irish family. It is one of the oldest recorded surnames in Europe Ó Cléirigh is Anglicized as Cleary (surname) and often Anglicized as Clark.
Naming conventions
The name has been Anglicised variously as O'Clery, Cleary, Clery, Clark, Clarke and Clarkson.| Male | Daughter | Wife ' | Wife ' |
| Ó Cléirigh | Ní Chléirigh | Bean Uí Chléirigh | Uí Chléirigh |
People with the surname
Ó Cléirigh
- Mac Comhaltan Ua Cleirigh, King of Uí Fiachrach Aidhne, fl. 964
- Lughaidh Ó Cléirigh
- Mícheál Ó Cléirigh, considered the chief author of the chronicle of medieval Irish history known as the Annals of the Four Masters
- Cú Choigcríche Ó Cléirigh
O'Clery
Cleary
- Bernard Cleary, Canadian politician
- Beverly Cleary, American author
- Bill Cleary, American hockey player
- Brendan Cleary, Irish poet
- Brian P. Cleary, American humorist, poet and author
- Daniel Cleary, Canadian hockey player
- Gabriel Cleary, Irish engineer
- Ivan Cleary, rugby league footballer and coach
- Joe Cleary, Irish baseball player
- John Cleary (disambiguation), several people
- Jon Cleary, Australian author
- Jon Cleary (musician), American musician
- Mark Cleary (professor), Vice-Chancellor of the University of Bradford
- Michael Cleary, several people
- Nikki Cleary, American singer
- Paul Cleary, Australian middle-distance runner
- Phil Cleary, Australian commentator
- Patrick Roger Cleary, founder of Cleary University
- Sean Cleary (footballer), Irish football player
- Sean Cleary, Irish rugby league footballer
- Thomas Cleary, American author and translator
- William J. Cleary, American politician
Clarke
- Austin Clarke (poet), Irish poet
- Henry Edward Clarke, businessman and politician in Ontario, Canada
- Henry Joseph Clarke, Premier of Manitoba, Canada, 1874–1878
- Peter Clarke (tennis), Irish tennis player
- Philip Clarke (politician), Irish Republican Army member and politician
- Tom Clarke (Irish republican), executed for his part in the 1916 Rising