Newcastle-Lyons is served by the number 311 bus which links it to Tallaght and the Luas Red Line, and the number 68 bus to the city centre. Newcastle-Lyons is home to St Finian's (Newcastle) GAA club () which was founded in 1943. In 1949 the club won the Dublin Intermediate Championship. The club's men's adult team currently plays in division 4 of the Dublin league, with the adult ladies' team playing in the Junior league and championship. Newcastle-Lyons is also home to Peamount United F.C. which was founded in 1983, and is now based in a purpose-built facility in Greenogue. In the 2011–12 season Peamount United's ladies team became the first Irish club to qualify for the UEFA Women's Champions League. Peamount United's male adult team plays in the Senior 1 division of the Leinster Senior League. The ladies' team plays in the Women's National League. Elm Hall Golf Club in located near Newcastle at Hazelhatch. It features two 18-hole pitch and putt courses.