Yulin Naval Base
{{Short description|People's Liberation Army Navy base in Hainan Province, China}}
{{Infobox military installation
| name = Yulin naval base
| native_name = 榆林海军基地
| coordinates = {{Coord|18|13|31|N|109|31|45|E|type:landmark_region:CN|display=inline,title}}
| type = Naval Base
| ownership = People's Liberation Army Navy
| open_to_public = no
| battles = Somali Naval Escort Operation of the People's Liberation Army
| garrison = South Sea Fleet
Special Operations Brigade (PLA Navy Marine Corps)
}}
Yulin Naval Base ({{Lang-zh|楡林海军基地}}) is the traditional base of the People's Liberation Army Navy, located in the eastern suburb of Sanya, Hainan Province, China, next to Yulin Port. Further east on Yalong Bay is the new Longpo Naval Base, formerly called "Yulin-East", for the nuclear submarines and aircraft carriers.[https://thediplomat.com/2017/03/chinas-most-important-south-china-sea-military-base/ China’s Most Important South China Sea Military Base (The Diplomat, 2017)]
The base area closest to Sanya is the base for a range of smaller vessels, including a unit of diesel-electric submarines.{{cite web |title=Sanya |url=https://www.globalsecurity.org/military/world/china/sanya.htm |website=www.globalsecurity.org |publisher=Global Security |access-date=1 April 2023}}{{cite web |title=China's submarine force: an overview |url=https://www.iiss.org/online-analysis//military-balance/2017/10/china-submarine-force |website=IISS |access-date=1 April 2023 |language=en}}