Diamond Joe

The nickname "Diamond Joe" or "Diamond Jo" may refer to:

People

 * Joseph "Diamond Jo" Reynolds (1819–1891)
 * Joe Esposito (mobster) (1872–1928)

Places

 * Diamond Jo Boat Store and Office, a historic building located in Dubuque, Iowa
 * Diamond Jo Casino, a casino and entertainment complex in Dubuque, Iowa
 * Diamond Jo Casino – Worth, a casino and entertainment complex in Worth County, Iowa

Characters

 * Joe Biden (The Onion), a fictionalized caricature of American politician Joe Biden
 * "Diamond Joe" Quimby, a character from The Simpsons