| Surname | Given Name | Burial Garden | Block, Lot & Grave | Death or Burial | Added information |
| O'Bringer | Alfred J. | Cross & Resurrection | 186-C #2 | 07/24/1982 | na |
| O'Bringer | Donald J. | Cross & Resurrection | 14-A #4 | 07/19/1993 | vet |
| O'Bringer | James L. | Good Shepherd | 223-C #1 | 04/29/1998 | na |
| O'Connor | Albert C. | Cross & Resurrection | 28-D #2 | 05/07/1983 | na |
| O'Donnell | Harry J. | Good Shepherd | 217-A #1 | 09/10/1994 | WW II Army Vet |
| O'Donnell | Pauline McKinnies | Good Shepherd | 217-A #1 | 11/24/2009 | Dob 1916 – obit |
| O'Leary | Viola | 07/26/1995 | 78 yrs-obit | ||
| O'Neil | Albert J. | Cross & Resurrection | 64-C #2 | 11/17/1990 | US Vet |
| O'Neil | Margaret | Cross & Resurrection | 64-C #1 | 08/11/1987 | na |
| O'Neil | Thomas Alan | Peace | 140-A upper #4 | 10/03/1981 | na |
| O'Neill | Clement G Jr | 05/11/2005 | Marine Corp Vet WWII Dob 1925 per obit - | ||
| O'Rourke | Barney P. | Cross & Resurrection | 134-D #2 | 06/15/1977 | na |
| Oberlink | Doris J. | Good Shepherd | 105-D #4 | 01/03/1972 | na |
| Oberlink | Dwight R. | Good Shepherd | 105-D upper #3 | 09/03/1996 | na |
| Odle | Darrell D. | Good Shepherd | 182-A #3 | 07/27/1979 | na |
| Odle | James E. | Good Shepherd | 182-A #1 | 03/18/2002 | na |
| Odom | Glethern Overman Hardesty | 03/23/2013 | Dob 1928 | ||
| Oehm | Mary Alene Mc Donald | Christus | 51-A #2 | 07/01/1994 | Dob 1904 |
| Oehm | Roswell P. | Christus | 51-A #1 | 04/14/1970 | Dob 7/1/1901 |
| Ogle | Ronald F., Sr. | Good Shepherd | 556-B #1 | 01/18/1982 | US vet- dob 8/3/1926 |
| Ohlhauser | John F. | Good Shepherd | 196-A #3 | 05/01/1970 | na |
| Okresik | Chester A. | 05/22/1995 | 78 yrs-obit d. Oak Lawn, IL | ||
| Olds | Clottie B. | Peace | 80-D #2 | 03/07/1998 | na |
| Olds | John Roland | Good Shepherd | 132-B #1 | 04/28/1972 | vet |
| Oliver | Mary | Peace | 231-A #2 | 05/28/1991 | na |
| Olsen | Betty Hart | Good Shepherd | 82-A #2 | 05/13/1986 | na |
| Omer | Gail Lynn | Christus | 99-D middle #2 | 07/20/1982 | na |
| Oram | Allene J. Goodin | 04/14/2008 | Dob 1914 | ||
| Orange | Floyd | Christus | 60-C #1 | 03/10/1994 | vet |
| Orange | Mildred M. | Christus | 60-C #2 | 05/27/1986 | na |
| Orlowski | Edward W. | Cross & Resurrection | 35-C #2 | 07/18/1972 | Dob 1915 |
| Orrell | Clarence L. | 12/10/2006 | Dob 1923 | ||
| Orrell | Gertrude Gayheart | 03/01/2013 | Dob 1926 – obit | ||
| Ortiz | Clarabelle | Good Shepherd | 85-B #2 | 07/24/1985 | na |
| Ortiz | Manuel M. | Good Shepherd | 85-B upper #1 | 09/01/1995 | 68 yrs-obit |
| Osborne | Charles | Peace | 275-C #1 | 07/25/2001 | WW II Army Vet |
| Osborne | Gay | Peace | 263-B #3 | 06/14/1997 | na |
| Oshinski | Alexander | Cross & Resurrection | 109-A #2 | 06/19/1968 | vet |
| Oshinski | Anna C. | Cross & Resurrection | 109-A #1 | 09/25/1970 | na |
| Oszuscik | John E. | Good Shepherd | 211-C #3 | 08/11/1977 | na |
| Oszuscik | John W. | Good Shepherd | 211-C #4 | 11/18/1988 | US Vet |
| Oszuscik | Veronica P. | Good Shepherd | 211-C middle #3 | 07/20/1982 | na |
| Otto | Donald W. | 07/22/2011 | Dob 1927 – obit- WW II Navy | ||
| Outten | Eddie Bee | Cross & Resurrection | 60-A #1 | 09/17/1997 | na |
| Owens | Rewell, Sr. | Peace | 104-C #1 | 05/16/1984 | na |