Anna Gardner (January 25, 1816 – February 18, 1901) was an American abolitionist and teacher, as well as an ardent reformer, a staunch supporter of women's rights, and the author of several volumes in prose and verse.

In 1841, she published the call for the first antislavery meeting in Nantucket, at which Frederick Douglass made his first public speech and electrified his audience.

Gardner was a fluent writer, and in 1881, she published her best work in a volume of prose and verse entitled Harvest Gleanings.

On her father's side, also, she received a literary strain, as the Cartwright family has produced poets in each generation.

In 1841, she was instrumental in calling a remarkable antislavery meeting in Nantucket when she was twenty-five years of age, which was largely attended.

After long weeks of suffering, a partial recovery, and crutches, she returned to her Nantucket home, where she continued to be engaged in teaching those around her, and writing in the interests of truth and philanthropy.