Kilkenny-born Marguerite Bolger is an Irish judge and lawyer who has served as a Judge of the High Court since January 2022. She previously practiced as a barrister, where she specialised in employment law. She was called to the Irish bar in 1993, and became a senior counsel in 2009. She primarily practiced in the area of employment law. She has appeared in cases before the Supreme Court of Ireland and the European Court of Justice. Her clients included both employees and employers, including RTÉ, the Irish Society for Prevention of Cruelty to Animals, An Post, Cork City F.C., and the Central Bank of Ireland.