Abraham Bradley Jr. (February 22, 1767 – May 7, 1838) was an American lawyer, judge, and cartographer who was an assistant postmaster general for 30 years during the earliest history of the United States Post Office Department.

The continuity brought by Bradley's long employment during the tenure of five United States postmasters generals helped establish the budding postal service as a reliable provider.

"[3] The son, Abraham Bradley, showed promise as a student and graduated from the celebrated law school run by Litchfield attorney Tapping Reeve.

[7] When Postmaster General Pickering was succeeded by Joseph Habersham in 1795, Bradley's postal route maps and voluminous knowledge of the department made him an irreplaceable figure.

The map included a remarkable and innovative table that indicated times and days of the week to expect mail at various important postal coach stops along the primary eastern route.

During the burning of Washington in 1814, many of the postal records and a few public officials were transferred for safety to the Bradley farmhouse, ten miles (16 km) north of the White House.

Bradley's 1825 edition of his map included postal routes in the newly acquired states of Arkansas, Illinois, and Missouri, while still providing accurate cartographic information on areas such as Michigan, Minnesota, and Wisconsin territories.

Jackson seems to have viewed the Bradley brothers as being corrupted by their high government salaries and their unique positions to decide the winners of lucrative mail contracts.

[15] After his removal, Bradley made no attempt to defend himself from partisan attack, but he did make several public communications pointing out what were in his view defective actions by the new administration in regards to postal service.

[11] Bradley's postal routes and schedules, enforced rigidly over 30 years, gave the Post Office Department a rapid and reliable engine for delivering information across vast distances, instilling in citizens the importance of the connectedness they shared with their distant neighbors.

[8] His 9.36-acre farm, which sat along present-day Connecticut Avenue, was leased in 1894 by Francis Newlands, a U.S. representative and land developer who had been seeking a parcel for a country club that might lure buyers to his planned suburb of Chevy Chase, Maryland.