Broombridge is a railway station beside a Luas Tram stop serving Cabra, Dublin 7, Ireland. It lies on the southern bank of the Royal Canal at the western end of what had been Liffey Junction station on the erstwhile Midland Great Western Railway (MGWR). It takes its name from Broome Bridge, which crosses the canal, where William Rowan Hamilton developed the mathematical notion of quaternions. A plaque on the adjacent canal bridge and the name of the Luas Maintenance depot on site, Hamilton Depot, commemorates this.