Ordnance Annex

{{short description|US naval base in Guam}}

Ordnance Annex is a US naval base in the United States territory of Guam. It used to be known as Naval Magazine, Guam. The base is on the south-central section of the island. It occupies an area of {{convert|8800|acre|km2}}.[https://web.archive.org/web/20160214140825/http://www.cnic.navy.mil/regions/jrm/installations/navbase_guam/about/installations/ordnance_annex.html Naval Base Guam :: Ordnance Annex]

The entirety of the man-made Fena Lake, which provides drinking water to the southern part of the island, is within the boundaries of Ordnance Annex. It is the original location of the latte stones relocated to Latte Stone Park in Hagåtña.