John Duffy
From Wikipedia, the free encyclopedia
The name John Duffy may refer to:
- John A. Duffy (1884 - 1944), American bishop
- John Duffy (musician) (born 1959), American singer, guitarist, mandolinist
- John Duffy (soccer) (1905-1984), American soccer player
- John Duffy and David Mulcahy (both born 1959), the Railway Rapists, British rapists and murderers
- John Duffy (mobster) (died 1924), American gang member, member of the North Side Gang
- John Duffy (economics) (born 1964), American economist
- John F. Duffy, legal academic
- John Duffy (rugby league)