John Clifford Happenny (May 18, 1901 – December 29, 1988) was an infielder in Major League Baseball. He played for the Chicago White Sox.
John Happenny
| Given name: | John Clifford Happenny |
| Nicknames: | Cliff |
| Primary Pos: | Secondbase |
| Hght/Wght: | 5'11" / 165 lbs |
| Bats/Throws: | R / R |
| Born: | May 18, 1901 in Waltham, MA |
| Died: | Dec 29, 1988 in Coral Springs, FL (87 years old) |
| Debut: | Jul 2, 1923 |