Donal O'Brien
From Infogalactic: the planetary knowledge core
Donal O'Brien may refer to:
- Domnall Mór Ua Briain (died 1194), king of Munster
- Donal O'Brien (hurler) (1940–2012), Irish hurler
- Donald O'Brien (actor) (1933–2003), French-born Irish film and television actor
See also
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