Liam Twomey (born 3 April 1967) is a medical doctor and former Irish Fine Gael politician who served as a Teachta Dála (TD) for the Wexford constituency from 2002 to 2007 and 2011 to 2016.

Before his election to Dáil Éireann, Twomey was Chairman of the Wexford Branch of the Irish Medical Organisation.

He was subsequently elected to the 23rd Seanad in July 2007 for the Cultural and Educational Panel.

[3] Twomey represented Fine Gael in the Oireachtas delegation that met the Bundestag's Budgetary and European Affairs committees in Berlin, Germany in late January 2012.

[4] In January 2015, he was appointed Chair of the Oireachtas Joint Committee for Finance Public Expenditure and Reform.