Los Alamos usually refers to Los Alamos, New Mexico, United States.

Los Alamos may also refer to:

• Los Alamos National Laboratory
• Los Alamos Laboratory, also known as Project Y, the war-time laboratory in Los Alamos, New Mexico.
• Los Alamos Museum, unofficial name of the Bradbury Science Museum
• Los Alamos Ranch School, boys' school

Chile

• Los Álamos, Bíobío region

United States

• Los Alamos, California
• Los Alamos, New Mexico
• Los Alamos County, New Mexico
• Cañada de los Alamos, New Mexico

• Los Alamos, a novel by Joseph Kanon
• Los Alamos, a book by the photographer William Eggleston

• Los Alamos chess, a chess variant
• Los Alamos (AFDB-7), a former large floating dry dock
• Los Álamos, a station on the Cercanías Málaga commuter rail service in Málaga, Spain

• Alamos (disambiguation)