Johannesburg (/dʒoʊˈhænɪsbɜːrɡ/ joh-HAN-iss-burg) is an unincorporated community in Otsego County in the U.S. state of Michigan.

[2] Located within Charlton Township, the community lies between Gaylord and Atlanta along the route of M-32.

As an unincorporated community, Johannesburg has no legally defined boundaries or population statistics of its own.

[3] A branch of the Michigan Central Railroad was constructed from Sallings to present-day Johannesburg in 1887.

The community took its name from Johanna Hanson, the wife of the president of the Johannesburg Manufacturing Company.