Considered a cardinal sin for many born and bred Edinburghers, dare to add an extra S to Princes Street, or an R to Calton Hill, and prepare for a thorough dressing down.
From Western Approach Road to St Andrew’s Square, we take a look at ten places around Edinburgh that people keep getting wrong.
1. Princes Street
Despite its prominence, Edinburgh's main drag frequently suffers being misnamed "Princess Street". It was originally named Prince's Street after the future King George IV, later losing the apostrophe to become Princes Street, and had nothing to do with any of the daughters of George III.
Photo: Ian Georgeson
2. Calton Hill
Calton Hill is right. Carlton Hill is completely wrong and makes our skin crawl.
Photo: Lisa Ferguson
3. West Approach Road
Once forming the approach into the long since vanished Princes Street Station from the west, the multi-lane road that was built on this former railway line was appropriately named the West Approach Road in the 1970s. The passing of almost five decades has not prevented some locals from calling it the "Western" Approach Road, however...
Photo: Greg Macvean
More a case of mispronunciation than misnaming, but one thing guaranteed to make an Edinburgh local scream inside is to hear the final syllable in Corstorphine pronounced as "fine". It is "Corstor-FIN", thank you very much.
Photo: Julie Bull