Ibaraki Airport is an airport in the city of Omitama, Ibaraki Prefecture, Japan. It also serves as an air base for the Japan Air Self-Defense Force (JASDF) under the name Hyakuri Air Base, and is the closest fighter base to Tokyo. The airport was known as Hyakuri Airfield prior to March 2010, when civil aviation operations began.

Omitama is a city located in Ibaraki Prefecture, Japan. As of 1 July 2020, the city had an estimated population of 48,776 in 18,311 households and a population density of 337 persons per km2. The percentage of the population aged over 65 was 30.0%. The total area of the city is 144.74 square kilometres (55.88 sq mi).