William "Tulsa Jack" Blake (c. 1859 - April 4, 1895) was an American outlaw of the Old West, and member of the Wild Bunch gang. He had been a cowboy in Kansas through the 1880s, before drifting into Oklahoma Territory, where in 1892 he met outlaw Bill Doolin, and joined Doolin's Wild Bunch gang, sometimes called the Oklahombres, or the Doolin-Dalton Gang.