Darwin is an unincorporated community in western Pushmataha County, Oklahoma, United States, nine miles west of Antlers.

It is approximately one-half mile east of the Atoka County border.

A United States Post Office opened at Darwin, Indian Territory on July 31, 1905 and operated until March 14, 1955.

[2] Founded during the waning days of the Indian Territory, Darwin was located in Jack’s Fork County, a part of the Pushmataha District of the Choctaw Nation.

After the decline of farming, ranching became the economic mainstay and remains the predominant activity.