| Player | Birth date | First year in majors | Last year in majors | Played in majors | With StL-N | With minors | Drafted |
| Bubber Jonnard | November 23, 1897 | 1920 | 1935 | Yes | Yes | Yes | 0 |
| Claude Jonnard | November 23, 1897 | 1921 | 1929 | Yes | Yes | No | 0 |
| Eddie Joost | June 5, 1916 | 1936 | 1955 | Yes | No | Yes | 0 |
| Robert Joratz | 1919 | 0 | 0 | No | No | Yes | 0 |
| B.J. Jordan | April 24, 1981 | 0 | 0 | No | No | Yes | 2003 |
| Brian Jordan | March 29, 1967 | 1992 | 2006 | Yes | Yes | Yes | 1988 |
| Edward Jordan | September 20, 1951 | 0 | 0 | No | No | Yes | 0 |
| Ed Jordan | June 12, 1929 | 0 | 0 | No | No | Yes | 0 |
| Frank Jordan | 0 | 0 | No | No | Yes | 0 | |
| Jimmy Jordan | January 13, 1908 | 1933 | 1936 | Yes | No | Yes | 0 |
| Niles Jordan | December 1, 1925 | 1951 | 1952 | Yes | No | Yes | 0 |
| Russell Jordan | 1917 | 0 | 0 | No | No | Yes | 0 |
| Tim Jordan | September 23, 1970 | 0 | 0 | No | No | Yes | 1989 |
| Tom Jordan | September 5, 1919 | 1944 | 1948 | Yes | Yes | No | 0 |
| Walter Jordan | 0 | 0 | No | No | Yes | 0 | |
| Mike Jorgensen | August 16, 1948 | 1968 | 1985 | Yes | Yes | No | 0 |
| David Jorn | October 2, 1954 | 0 | 0 | No | No | Yes | 0 |
| Godfrey Josefson | April 20, 1893 | 0 | 0 | No | No | Yes | 0 |
| William Josephs | 0 | 0 | No | No | Yes | 0 | |
| Edward Joseph | October 13, 1914 | 0 | 0 | No | No | Yes | 0 |