O'Neill's is an Irish-themed pub chain with 49 outlets in Great Britain.
The chain is operated by Mitchells & Butlers, one of the largest pub companies in the United Kingdom.
The first O'Neill's was opened in Aberdeen in 1994 by Bass, the largest pub company in the UK at the time.
Bass owned Caffrey's ale, which was launched by the company around the same time as O'Neill's.
Bass acquired the 40-strong Scruffy Murphy's Irish pub chain from Allied Domecq in 1999.