||This biographical article needs additional citations for verification. (April 2011)|
|Irish name||Liam Ó Súilleabháin|
|Position||Left wing forward|
22 September 1968 |
Ballygunner, County Waterford
|1985 - 2006||Ballygunner|
|1987 - 2000||Waterford|
Billy O'Sullivan was born in Ballygunner, County Waterford in 1968. He was educated locally and from an early age he showed a great interest in hurling. Billy won an U15 Munster Colleges with De La Salle College, Waterford. He played for a combined Fitzgibbon Cup teams from 1987-1989.
Billy plays his club hurling with his local Ballygunner team. He had some success at underage levels and in 1988 and 1989 he won two Under-21 County medal with the club. senior county medal with the club. Billy added senior county medals to his collection in 1992, 1995, 1996, 1997, 1999, 2001 & 2005. In 2001 he his converted county medal into a Munster club hurling title. O'Sullivan won his seventh county championship title in 2005 playing in a 14th senior county final. Billy also won an All-Ireland Clubs Sevens medal in 1993.
Billy still plays for Ballygunner at intermediate grade. He was elected club chairman in early 2010.
In 2000 Billy suffered a serious ankle injury against Killkenny in the national league.
Billy retired from inter-county hurling after the first round of the Munster Championship in 2000 against Limerick.
Billy won a Railway Cup medal in 1992.