Barrett's Siding is a ghost town in Newfoundland and Labrador. It is located in Division No. 7, Subdivision E.
The community was came about as a side track railcar storage depot on the Bonavista branch railway. It first appeared on 1956 census with a population of 16; this was the height of the population. In 1961 there were 8 people, in 1966 this would drop to 4.