Naval Outlying Field Webster also Webster Field (ICAO: KNUI, FAA LID: NUI), is a military base with an airfield.

It is a site of the Naval Air Warfare Center Aircraft Division (NAWCAD) serving Navy test pilots and avionics engineering and development, located on the west side of St. Inigoes, Maryland, United States.

The airfield was located on a Jesuit property owned since 1634.

During World War II, the U.S. Navy purchased the land for $96,000 from the priesthood in 1943, paying them one year later.

The Naval Air Navigation Electronics Project moved to the field in 1960.