Boys names with unexpected nicknames

[Bakingdiva]

(Caveat- this is for a book character)

I'm looking for a boys name where the nickname isn't just a shortening of the full name. For example:

Richard / Dick
Alexander / Sasha / Sandy

Can anyone think of any others?

Thanks

Some Russian ones:
Gosha for Igor
Misha for Michael
Katya for Jekaterina (like our Kate for Katherine)

I know a Michael known as Spike.

Some of my faves-
Hal for Henry
Cal for Charles or Michael
Jem for James
Han for Nathaniel
Lex or Xan for Alexander
Bear or Iolo for Edward

I love the nn Bash for Sebastian

Although if it’s an unexpected nn couldnt it be anything with a bit of backstory?

@MrsJemimaDuck

And in America, Beau is a nickname for any son who is the third. (What comes after jr.)

I thought that was Trey, or Trip?

Henry - Harry or Hal
John - Jack
Christopher - Kester or Kit
Jonathan - Jonty
Michael - Mitch
Gareth - Gaz
Nicholas - Cole
Charles - Chuck
Theodore - Ted, Teddy
Lawrence - Larry
George - Geordie
Andrew - Drew
Anthony - Tony
Albert or Robert - Bert, Bertie
Robert - Bob, Bobby

Peggy short for Margaret

Phillip- Pip

Theodore nn Teddy

Sebastian- Bastian
Chase - Ace
Alexander- Lex, Xander.
Wayne - wiggy
Theodore - Teddy/Ted

Totally missed the boys bit

William - Bill, Billy

Bobby for the surname Clarke

Nobby not Bobby!

@Ellmau Those are both true, as well!