| Name | Relationship with John Kennedy | Civil | Canon |
|---|
| Noonan, Daniel | 3rd great-grandfather | V | 5 |
| Noonan, Ellen | 2nd great-grandmother | IV | 4 |
| Norton, Mary | Great-grandmother of the wife | | |
| Olsson, Jean Edith | Wife of the nephew | | |
| Paulin, Therese | 5th great-grandmother of the wife | | |
| Radziwill, Anna Christina | Niece of the wife | | |
| Rauch, Sheila Brewster | Ex-wife of the nephew | | |
| Reggie, Victoria Anne | Sister-in-law | | |
| Repelin, Benoite | 4th great-grandmother of the wife | | |
| Richardson, Mary | Wife of the nephew | | |
| Ruhe, Jeffrey Robert | Husband of the niece | | |
| Schlossberg, Edwin Arthur | Son-in-law | | |
| Schlossberg, John | Grandson | II | 2 |
| Schlossberg, Rose | Granddaughter | II | 2 |
| Schlossberg, Tatiana | Granddaughter | II | 2 |
| Sergeant, Maud Frances | Grandmother of the wife | | |
| Sergeant, William R. | Great-grandfather of the wife | | |
| Sheehy, Mary | 2nd great-grandmother | IV | 4 |
| Shriver, Anthony Paul | Nephew | III | 2 |
| Shriver, Maria Owings | Niece | III | 2 |
| Shriver, Mark Kennedy | Nephew | III | 2 |
| Shriver, Robert Sargent | Brother-in-law | | |
| Shriver, Robert Sargent | Nephew | III | 2 |
| Shriver, Timothy Perry | Nephew | III | 2 |
| Shwarzenegger, Arnold Alois | Husband of the niece | | |
| Shwarzenegger, Christina Aurelia | Grandniece | IV | 3 |
| Shwarzenegger, Patrick | Grandnephew | IV | 3 |
| Skakel, Ethel | Sister-in-law | | |
| Smith, Amanda Mary | Niece | III | 2 |
| Smith, Kym Marie | Niece | III | 2 |
| Smith, Stephen Edward | Brother-in-law | | |
| Smith, Stephen Edward | Nephew | III | 2 |
| Smith, William Kennedy | Nephew | III | 2 |
| Strauss, Victoria Anne | Wife of the nephew | | |
| Townsend, David Lee | Husband of the niece | | |
| Townsend, Kerry Sophia Kennedy | Grandnephew | IV | 3 |
| Townsend, Maeve Fahey Kennedy | Grandniece | IV | 3 |
| Townsend, Meaghan Anne Kennedy | Grandniece | IV | 3 |
| Townsend, Rose Katherine Kennedy | Grandniece | IV | 3 |
| Trintignant, Anne | 4th great-grandmother of the wife | | |
| Trintignant, Jean | 5th great-grandfather of the wife | | |
| Twomey, Louis Leo | Husband of the 1st cousin once removed | | |
| Vernou, John | 3rd great-grandfather of the wife | | |
| Vernou, Louise C. | 2nd great-grandmother of the wife | | |
| Wilmouth, Ellen | 2nd great-grandmother | IV | 4 |
| Wilmouth, Thomas | 3rd great-grandfather | V | 5 |
