| Full Name | John Franklyn Mars |
| Date of Birth | 15th October, 1935 |
| Age | 84 Years (in 2020) |
| Place of Birth | Arlington, Virginia, US |
| Nationality | American |
| Height (in Feet-Inches) | Not Known |
| Spouse | Adrienne Bevis (1958 – Present) |
| Father | Forrest Edward Mars Sr. |
| Mother | Audrey Ruth Mars |
| Siblings | Forrest Jr. Mars (Brother) Janet Henderson (Sister) Jacqueline Mars (Sister) |
| Children | Linda Anne Mars (Daughter) Frank Edward Mars (Son) Michael John Mars (Son) |
| School | Hotchkiss School |
| College | Yale University |
| Occupation | Co-owner & Chairman of Mars Inc. |
| Current resident | Jackson, Wyoming |
| Net Worth | US $ 28.1 billion (January 2018) |
John Mars
