Llandudno Junction TMD was a traction maintenance depot located in Llandudno, Conwy, Wales.

The depot was situated on the Conwy Valley Line and was near Llandudno Junction railway station.

[3] Class 153 DMUs were also stored here before the depot's demolition in 2000.

[2] After re-development of the site, the local authority named a road crossing the area as "Ffordd 6G Road".

Probably the only street in the UK named after a BR shed code.