Opal is an unincorporated community in Lawrence County, in the U.S. state of Missouri.
Opal is located on Missouri Route 39-Missouri Route 265 about midway between Mount Vernon to the northwest and Aurora to the southeast.
The community most likely has the first name of a local woman.
‡This populated place also has portions in an adjacent county or counties
Coordinates: 37°01′16″N 93°46′13″W / 37.02111°N 93.77028°W / 37.02111; -93.77028