Stephen O'Halloran is an Irish left back who was born in Cobh, Republic of Ireland on 29th November 1987. O'Halloran began his professional career at Aston Villa after signing from Irish youth side Springfield Ramblers.
After appearing for Villa in pre season matches, O'Halloran was loaned to Wycombe in October 2006. He played 14 times for the Adams Park outfit, and helped the club reach the semi-finals of the League Cup. O'Halloran started Wycombe's historic 1-1 draw with Chelsea on 10th January 2007. In May 2007 he was called up to Steve Staunton's Republic of Ireland squad for games against Ecuador and Bolivia.
O'Halloran joined Southampton on loan on 16th January 2008, and made his one and only appearance for the club on 29th January in a 1-0 home loss to Norwich. O'Halloran looked out of his depth at Championship level, and quickly returned to Villa Park. His manager Martin O'Neill spoke out against Southampton for not giving the Irishman a fair chance at St Marys. He joined Leeds on loan on 28th February 2008, but suffered a serious anterior cruciate ligament injury in the warm up of a match at Swindon, meaning he never played a single game for the club.
On November 5th 2008 O'Halloran joined Swansea on a three month loan deal. The Irish full back made his Swans debut 11th November in a Carling Cup home loss to Watford. Unfortunately, O'Halloran suffered yet another cruciate ligament injury in only his third match for the club, forcing his return to Villa.
On June 23rd 2010 O'Halloran joined Coventry City on a one year deal after being released by Aston Villa. He spent the first few months on the season on the sidelines, and had to wait until 28th December for his debut in a 2-0 home loss against QPR. O'Halloran had a decent run in the Sky Blues first team in the first few months of 2011, but was released by the club in May.
O'Halloran signed for Carlisle United in the summer of 2011 following a successful trial.