Barnstaple became Barnstaple Junction in the 1870s then not-quite-100 years later in 1970 reverted back to Barnstaple when the Ilfracombe branch closed to passengers. Further up the line, Kings Nympton was once South Molton Road (changed, I believe, when the GWR Taunton-Barnstaple line opened their own South Molton station much much closer to the town - on which topic, their Barnstaple terminus was just 'Barnstaple' until the route round to Junction opened up and it gained its 'Victoria Road' suffix), and further up the North Devon Line still, Yeoford was once Yeoford Junction, again, changed when the LSWR line to Okehampton and beyond closed to passengers.
Sampford Peverell station is now Tiverton Parkway, but that probably doesn't count as the original station was closed in the '60s and Tiverton Parkway was built and opened in the '80s!
London Waterloo was also originally Waterloo Bridge.