| Andrew C. Lennon | |
| Birth Name: | Andrew Charles Lennon |
| Birth Place: | New York, U.S. |
| Allegiance: | United States |
| Branch: | United States Navy |
| Serviceyears: | 1987–2021 |
| Rank: | Rear admiral (upper half) |
Andrew Charles Lennon (born) is a retired United States Navy rear admiral. He was NATO Commander of Submarines from 2017 to 2019.[1] Since 2021, he has been executive director of the U.S. Naval Sea Cadet Corps.