Navy Region Southeast (NAVREGSE or CNRSE) is one of eleven current naval regions responsible to Commander, Navy Installations Command for the operation and management of Naval shore installations in Kansas, Oklahoma, Texas, Missouri, Arkansas, Louisiana, Tennessee, Mississippi, Alabama, Georgia, Florida, and South Carolina.

The region's installations also host the United States Navy Flight Exhibition Team, more commonly known as the Blue Angels, which for a brief stint in the late 1940s were under what was then the Naval Air Advanced Training Command.

All of these districts were formed in 1903 by then-Acting Secretary of the Navy Charles H. Darling.

The command was then responsible for all aviation-related training in the southeast during World War II.

The name then changed to Naval Air Advanced Training Command in the mid-1940s with fighter pilot training as the primary focus, followed by a merger in 1948 with Commander, Fleet Air Jacksonville.