Alexander Bullock, American lawyer and politician, 26th Governor of Massachusetts (d. 1882)
Alexander Hamilton Bullock (March 2, 1816 – January 17, 1882) was an American lawyer, politician, and businessman from Massachusetts. First a Whig and then a Republican, he served three terms (1866–69) as the 26th Governor of Massachusetts. He was actively opposed to the expansion of slavery before the American Civil War, playing a major role in the New England Emigrant Aid Society, founded in 1855 to settle the Kansas Territory with abolitionists. He was for many years involved in the insurance industry in Worcester, where he also served one term as mayor.

Bullock was educated as a lawyer, and married into the wealthy Hazard family of arms manufacturers, becoming one of the state's wealthiest men. He served in the state legislature during the war, and was active in recruiting for the war effort. He was an advocate of temperance, and of the expansion of railroads in the state.