The Dublin-Waterford line is a railway line in Ireland connecting Dublin with the major port of Waterford City in County Waterford.

The line was constructed by the Great Southern and Western Railway.

[1] Both passenger and freight services run on the line.

InterCity passenger services are operated by the 22000 Class DMUs.

Kilkenny is located on a short spur off the line; freight trains use the Lavistown loop line to avoid reversal there.