When I lived in Australia, I worked with a Mike Oxarde!! He was none too bright, he never cottoned on why people would snigger at the the nameplate on his desk.
Having worked in customer service type jobs all my life, I've come across quite a few.
One of the best was a guy called Richard Head, who actually named his son 'Dickon'. I kid you not. No word of a lie.
Also a woman called Emma who was unfortunate enough to marry a Mr Royds. You would have thought she could have kept her maiden name.
Then there's Mary Christmas, and Martin Martin.
How about people who have changed their name by deed poll.
I've seen people called Fungus The Bogeyman, Funky Boogaloo-Smythe, and Sidney Harbour-Bridge.
A friend of mine knew a guy who changed his name to Berk Bonebonce!
the guy that plays randall in randall and hopkirk (deceased) is called something pratt, its not that bad, but when addressed formerly people would say "hello mr pratt" no doubt with a smile!
I went to school with a Neil Downe (very shortsighted parents)
This name is made up but..
I used to work in a leisure centre and had been given a really hard time by the Duty Manager for several shifts together. It finally got to much for me so I stole a blank membership card from the main office and filled it out, when she was next on reception I handed the card in saying that I'd found it in the changing room minutes earlier....
cue PA message to whole packed leisure centre asking for a Hugh Jarse to report to reception.. shockingly she was quite big boned - much to the amusement of the local gangs of teenagers who ripped the shit out of her all afternoon.