John Q. A. Brackett, American lawyer and politician, 36th Governor of Massachusetts (d. 1918)

John Quincy Adams Brackett (June 8, 1842 – April 6, 1918) was an American lawyer and politician from Massachusetts. A Republican and temperance advocate, he served one term as the 36th Governor of Massachusetts, from 1890 to 1891. Born in New Hampshire and educated at Harvard, he practiced law in Boston before entering politics.

In the Massachusetts House of Representatives, Brackett rose to become Speaker in 1885, and was elected Lieutenant Governor of Massachusetts under Governor Oliver Ames. He succeeded Ames, but his bid for reelection in 1891 was ended by strict enforcement of restrictive liquor laws, and by the negative economic effects on the state of the McKinley Tariff. He was a delegate to the Massachusetts Constitutional Convention of 1917–1918, but died before it ended.