Oak Ridge or Oakridge may refer to numerous locations in English-speaking countries - the most well-known being Oak Ridge, Tennessee, due to its part in the Manhattan Project. These and other meanings include:

• Oak Ridge Cemetery in Springfield, Illinois, U.S.
• Oakridge Cemetery, a cemetery located in Hillside, Illinois, U.S.

• Oak Ridge Associated Universities, a consortium of American universities headquartered in Oak Ridge, Tennessee, U.S.
• Oak Ridge High School (disambiguation)
• Oak Ridge Institute for Science and Education, a Department of Energy institute, headquartered in Oak Ridge, Tennessee, U.S.
• Oak Ridge Military Academy, a military college-preparatory school in North Carolina, U.S.
• Oakridge School (disambiguation)
• Oakridge Secondary School, a secondary school in London, Ontario, Canada

• K-25, a former uranium enrichment facility of the Manhattan Project in Oak Ridge, Tennessee, U.S.
• Oak Ridge National Laboratory, a science and technology national laboratory in Oak Ridge, Tennessee, U.S.
  • ORACLE (computer), an early computer built at the laboratory
• Oak Ridge Observatory, an astronomical observatory at Harvard University

• USS Oak Ridge (ARDM-1), a World War II U.S. naval vessel used as a floating dry dock
• The Oak Ridge Boys, a U.S. country music band
• Oak Ridge Waste, a waste management company located in the United States.

• All pages with titles beginning with Oak Ridge
• All pages with titles beginning with Oakridge

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