There have been multiple Bill Kelly's in major league history.
- Bill Kelly (kellybi01) - outfielder from 1871-1871
- Bill Kelly (kellybi03) - infielder from 1920-1928
- Billy Kelly - catcher from 1910-1913
Disambiguation Pages are for subjects or titles that might refer to multiple possible BR Bullpen subjects. If your link directed you to this page, you may want to update it to one of the pages above.