| Jack Gregory | |
| Birth Date: | 8 June 1927 |
| Birth Place: | East Lansdowne, Pennsylvania, U.S. |
| Death Place: | East Lansdowne, Pennsylvania, U.S. |
| Player Years1: | 1947 |
| Player Team1: | West Chester |
| Player Years2: | 1949–1951 |
| Player Team2: | East Stroudsburg |
| Player Positions: | Guard |
| Coach Years1: | 1952–1953 |
| Coach Team1: | William Penn HS (DE) (line) |
| Coach Years2: | 1954–1958 |
| Coach Team2: | P. S. Dupont HS (DE) |
| Coach Years3: | 1959–1965 |
| Coach Team3: | East Stroudsburg |
| Coach Years4: | 1966 |
| Coach Team4: | Navy (assistant) |
| Coach Years5: | 1967–1969 |
| Coach Team5: | Villanova |
| Coach Years6: | 1970–1975 |
| Coach Team6: | Rhode Island |
| Admin Years1: | 1978–1982 |
| Admin Team1: | Yale (assistant AD) |
| Admin Years2: | 1982–1994 |
| Admin Team2: | Bowling Green |
| Overall Record: | 87–57–4 (college) 25–15 (high school) |
| Championships: | 2 PSAC (1964–1965) 3 PSAC Eastern Division (1962, 1964–1965) |
John C. Gregory Jr. (June 8, 1927 – December 4, 2014) was an American football player, coach, and college athletics administrator. He served as the head football coach at East Stroudsburg University of Pennsylvania (1959–1965), Villanova University (1967–1969), and the University of Rhode Island (1970–1975), compiling a career college football record of 87–57–4. He was the athletic director at Bowling Green State University from 1982 to 1994.
Gregory attended high in Lansdowne, Pennsylvania. He played college football at West Chester Teachers College—now known as West Chester University, before transferring to East Stroudsburg in 1949. Gregory played as lineman at East Stroudsburg for three seasons and graduated in 1952.
Gregory began his coaching career at William Penn High School in New Castle, Delaware, where he was an assistant to head football coach Billy Cole in 1952 and 1953, coaching the line.[1] He was hired as the head football coach at P. S. Dupont High School in Wilmington, Delaware in 1954, where he tallied a mark of 25–15 in five seasons.[2] He died in Philadelphia in 2014.[3] [4] He was inducted into the Delaware Sports Hall of Fame as part of its 2020/2021 class.[5]