The Dalguise Viaduct is a lattice girder viaduct in Dalguise, Perth and Kinross, Scotland. It carries the Highland Main Line railway across the River Tay. Built in 1863, it was designed by Joseph Mitchell, for the then-new Inverness and Perth Junction Railway. A Category A listed structure, it stands about 0.44 miles (0.71 km) north of the now-disused Dalguise railway station.

The viaduct is in two parts; the southern one being 210 feet (64 m), the northern 141 feet (43 m). The ironwork was supplied by Sir William Fairbairn & Sons, of Manchester.

• List of crossings of the River Tay

• Dalguise Viaduct – RailScot