O'Byrne may refer to:
*
O'Byrne family, an Irish clan
*
O'Byrne (surname), including a list of people with the name
See also
*
Byrne
Byrne is an Irish surname and less commonly a given name. It is derived from the Gaelic ''Ó Broin'' or ''Ó Beirn'', which are also linked to the surname O'Byrne.
There are two Irish surnames which have Byrne as their English spelling; the mos ...
*
O'Beirne
{{disambig