De Kooy Airfield is an airfield 2.9 nm south of Den Helder, the Netherlands, named after the nearby hamlet De Kooy. It serves as both a civilian airport under the name Den Helder Airport and a naval airport under the name Maritiem Vliegkamp De Kooy.
Temperate Marine climate/Oceanic climate (Köppen climate classification Cfb). Moderately cool summer and comparatively warm winter with a temperature range of only 14°C. Prevailing south-westerly winds from the Atlantic Ocean.