Brian O'Driscoll (born 21 January 1979 in Dublin) is the current captain of the Irish rugby union national team. He is a centre-back who plays club rugby for Leinster.

He made his first appearance for Ireland in 1999, and established himself as one of rugby's most dangerous ballcarriers. O'Driscoll became popular enough in Ireland that many supporters started donning T-shirts with the motto "In BOD We Trust". In 2003, following the international retirement of longtime Ireland captain Keith Wood, he was elevated to the captaincy, and led Ireland to a second-place finish in the Six Nations and a Triple Crown.