| Nelson Greene | |
| Position: | Pitcher |
| Bats: | Left |
| Throws: | Left |
| Birth Date: | 20 September 1899 |
| Birth Place: | Philadelphia, Pennsylvania, U.S. |
| Death Place: | Lebanon, Pennsylvania, U.S. |
| Debutleague: | MLB |
| Debutdate: | April 28 |
| Debutyear: | 1924 |
| Debutteam: | Brooklyn Robins |
| Finalleague: | MLB |
| Finaldate: | July 14 |
| Finalyear: | 1925 |
| Finalteam: | Brooklyn Robins |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 2–1 |
| Stat2label: | Earned run average |
| Stat2value: | 8.71 |
| Stat3label: | Strikeouts |
| Stat3value: | 7 |
| Teams: |
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Nelson George Greene (September 20, 1899 – May 6, 1983) was an American pitcher in Major League Baseball. He pitched in fifteen games for the Brooklyn Robins during the 1924 & 1925 seasons. He attended college at Lehigh University and Villanova University.