Nicknames for William
7 nicknames, sorted by where they actually get used.
Office-safe
Will
formal
Bill
formal
Liam
formal
Wills
formal
Playground-friendly
Billy
casual
Willy
casual
Family nicknames
Willis
endearment
William carries 7 documented short forms — Will, Bill, and Liam — drawn from its English-origin roots. The list splits into 4 office-safe picks and 2 playground-friendly options so you can match the moment.