| Alyssa O'Neill | |
 Alyssa O'Neill in 2378 | |
| Full name: | Alyssa O'Neill |
| Species: | Human |
| Gender: | Female |
| Born: | 2333 |
| Affiliation: | Federation, Starfleet |
| Career | |
| Occupation: | Starfleet officer |
| Assignment: | operations officer, USS Intrepid-A (2378-present) |
| Rank: | Lieutenant Commander |
| Insignia: |  
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Alyssa O'Neill is a female Human who was a Starfleet officer in the 24th century. Alyssa was the operations officer on the USS Intrepid-A. By the year 2390, Alyssa was promoted to the rank of Lieutenant Commander. (Star Trek: Intrepid)