Berlin is an unincorporated community in southeastern Roger Mills County, Oklahoma, United States.

[2] The Berlin Post Office opened September 2, 1896, and closed May 5, 1967.

The 1905 Oklahoma Territorial Census gave the population for the town as sixty.

[4] The Goodwin-Baker Archaeological Site, a Plains Village period (A.D. 1000 to 1500) research location[5] northeast of Berlin, is on the National Register of Historic Places listings in Roger Mills County, Oklahoma.

[6] On Tuesday, April 12, 2022, Berlin experienced a rare weather phenomena, known as a 'Firenado.'