Joseph Jackson Bartlett (November 21, 1834 – January 14, 1893) was a New York attorney, brigadier general in the Union Army during the American Civil War, and postbellum international diplomat and pensions administrator for the United States Government.

He was chosen to receive the stacked arms of General Robert E. Lee's Army of Northern Virginia at Appomattox Court House.

He passed his bar examination in 1858 and initially established his practice in Binghamton before moving it to Elmira shortly before the Civil War erupted in 1861.

His aggressive actions to guard the rear during the subsequent retreat were rewarded on September 21 when army commander Maj. Gen. Irvin McDowell promoted Bartlett to colonel replacing Slocum, who was elevated to brigadier general.

Bartlett was transferred to V Corps in time for the Mine Run Campaign later that year, and led its first division in the absence of BG Charles Griffin.

Bartlett resumed his legal career, which was briefly interrupted from March 1885 through July 1889, when he served as Deputy Commissioner of Pensions under President Grover Cleveland.