The Black P-Stone Nation is a street gang which has operated in Chicago since the early 1960s. This group was originally known as the "Grass-roots Independent Voters of Illinois." During the 1960s they became known as the Blackstone Rangers under the lead of Jeff Fort. After Fort assumed control he applied for and received federal inner city grants for his organization claiming they would put the money to use for the education of inner city children and the expansion of jobs.

In 1969, Fort received an invitation to President Nixon’s inauguration. At the same time, Fort consolidated approximately fifty south-side Chicago (Woodlawn District) street gangs into a supreme power, namely the Black P Stone Nation. The money Fort received from the federal government was utilized by this group for the purchase of weapons and drugs to strengthen his hold on the gang. In the early 1970s, Fort was discovered misappropriating the government funds, convicted, and sent to prison.

The Black P-Stone Nation is a multi-racial, multi-gender gang. Common identifers include the five-point star, pyramids with 21 blocks (symbolizing the original 21 members), an eye, the initials "BPS" and other People Nation symbols. The gang has factions throughout the midwest and East coast.