Lak Sao
{{Use dmy dates|date=October 2018}}
{{Infobox settlement
|name =Lak Sao
|other_name =Lakxao, Ban Lak Xao
|native_name =
|settlement_type =town
|image_skyline = MainStreet LakSao Borikhamxai Laos.jpg
|imagesize =
|image_caption = The main street of Lak Sao
|pushpin_map = Laos
|pushpin_label_position =right
|pushpin_map_caption =Location in Laos
|subdivision_type = Country
|subdivision_name ={{flag|Laos}}
|subdivision_type1 =Province
|subdivision_name1 = Bolikhamsai
|subdivision_type2 =District
|subdivision_name2 = Khamkeut
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|coordinates = {{Coord|18|11|38|N|104|58|17|E|region:LA-BL|display=inline,title}}
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Lak Sao (Lakxao, Ban Lak Xao{{GEOnet2|j32FA88168DDD3774E0440003BA962ED3|Ban Lak Xao (Approved - N) }}, United States National Geospatial-Intelligence Agency) is a small town in Khamkeut District, Bolikhamsai Province, of central Laos. It is located at the major crossroads where the 1E comes from the south, and the AH15, as Lao National Route 8, comes from the northeast and the border with Vietnam. The AH15 continues west to Thailand.{{Cite web|title=Trip Planner: Laos on Paved Roads |publisher=Golden Triangle Riders |url=https://www.gt-rider.com/se-asia-motorcycling/threads/trip-planner-laos-on-paved-roads.9054/ |archive-url=https://web.archive.org/web/20160928095813/https://www.gt-rider.com/se-asia-motorcycling/threads/trip-planner-laos-on-paved-roads.9054/ |archive-date=28 September 2016 |url-status=live |df=dmy}}
During the Vietnam War/Laotian Civil War the Laotian army fought the North Vietnamese at the Battle of Lak Sao.{{Cite book|last1=Conboy |first1=Kenneth J. |last2=Morrison |first2=James |year=1995 |title=Shadow War: The CIA's Secret War in Laos |location=Boulder, Colorado |publisher=Paladin Press |pages=13–44 |isbn=978-0-87364-825-7}}