Meanings
English Baby Names Meaning:
In English Baby Names the meaning of the name Billy is: Nickname for William 'resolute protector' often used as an independent name.
German Baby Names Meaning:
In German Baby Names the meaning of the name Billy is: Will-helmet. Famous Bearers: poet and playwright William Shakespeare (1564-1616) and William Wordsworth.
American Baby Names Meaning:
In American Baby Names the meaning of the name Billy is: Nickname for William 'resolute protector' often used as an independent name.