The Emancipator (1833–1850) was an American abolitionist newspaper, at first published in New York City and later in Boston.

From 1840 to 1850, it was published by the Liberty Party; the publication changed names several times as it merged with other abolitionist newspapers in Boston.

Contributors to the paper included Lewis Tappan (of the Amistad case), James McCune Smith (who also co-edited The Colored American), Joseph Cammett Lovejoy, Samuel Edmund Sewall, Henry Brewster Stanton, Horace Edwin Smith, William Ellery Channing, and William Stevens Robinson.

[1] The Emancipator was founded in March 1833 in New York City by Arthur Tappan, a wealthy abolitionist and president of the American Anti-Slavery Society.

African-American sales agents selected to represent the new publication included: On October 25, 1835, in a nationally publicized spectacle, a Tuscaloosa County, Alabama, grand jury issued a true bill against Robert G. Williams, agent and publisher of The Emancipator, for allegedly "circulating seditious pamphlets in Alabama" ... "tending to excite our slave population to insurrection and murder."