| Name | Meaning | Origin |
|---|
| Tilly | Strength in battle. Matilda was the wife of William the Conqueror. Used in Australia as slang for a bushman's pack. | French Baby Names, German Baby Names |
| Willie | Will-helmet. Famous Bearers: poet and playwright William Shakespeare (1564-1616) and William Wordsworth. | English Baby Names, German Baby Names, American Baby Names |
| Willis | Resolute protector; will. Surname. | English Baby Names, German Baby Names, American Baby Names |
| Willy | Will-helmet. Famous Bearers: poet and playwright William Shakespeare (1564-1616) and William Wordsworth. | English Baby Names, German Baby Names |