I was very confused when we lived in York and someone asked me to make some 'buns'. Here in Scenic East Northants, buns are made from sweet yeast dough with dried fruit in. In York, 'buns' are any small cakes. Then we visited OH's cousin in Newcastle-upon-Tyne, and I found that 'buns' are bread rolls! No wonder foreigners get confused!
Here we have Oundle which is often misheard as 'Arundel' if you pronounce it Ow as in brown but if you are a native of Northants, 'ou' is a sound difficult to write because it's like 'e' and 'a' and 'o' all rolled into one, followed by 'w', sort of 'eaowndle'
Then there is Chelveston which use to be pronounced 'Chelsun' locally, but with so many 'incomers', the middle syllable has taken root more firmly.