No. You can call William Will. Dan is short for Daniel.
Will is short for William and a nickname for Will is Bill
"Dan" is not a specific term in "boy language." If you could provide more context or clarify your question, I would be happy to help answer.
Dan Telfer's birth name is Daniel William Telfer.
Dan Schepleng's birth name is Daniel William Schepleng.
His name is William
biscuit
William Henry Short was born in 1884.
Dan can be a girls name but only if it is short for something like Danielle
No. Dan is short for: - Daniel - Danny - Danielle - Danni A nickname for Damien might be: - Dam - Dami - Damo
The name Billy is commonly a short form of the name William.
His term was short because he died before it could get longer.
Will is usually short for William.