The Turnchapel Branch was a London and South Western Railway (LSWR) single track branch railway line in Devon, England, that ran from Plymouth Friary station to Turnchapel. It crossed the River Plym and opened up the east side of the river to rail connections. The short line opened in 1892 (as far as Plymstock) and 1897 (throughout). It closed in 1951 to passengers, and in 1961 completely.
There were three intermediate stations, Lucas Terrace Halt (from 1905), Plymstock (opened 1892) and Oreston. There was a siding serving the Bayly Bartlett Wharf