Nina Marion Armagno is a retired United States Space Force lieutenant general who served as the first director of staff of the United States Space Force from 2020 to 2023. She is the service's first female general officer and the only officer to have commanded both the 30th Space Wing and the 45th Space Wing. Before transferring to the Space Force, she was a major general in the United States Air Force, where she served for over 32 years.

In the United States Armed Forces, a lieutenant general is a three-star general officer in the United States Army, Marine Corps, Air Force, and Space Force.