Abby Hadassah Smith (June 1, 1797 – July 23, 1879) was an early American suffragist who campaigned for property and voting rights from Glastonbury, Connecticut.

[3] Smith's mother authored one of the earliest anti-slavery petitions, presented to the United States Congress by John Quincy Adams.

[3] At Hannah's instigation, the family house on Main Street, Kimberly Mansion, was a stop on the Connecticut Freedom Trail; it is now a designated National Historic Landmark.

Smith was educated at Emma Willard’s Seminary in Troy, New York and was known to have kept a diary in both French and Latin.

[4] In The Woman's Bible, Elizabeth Cady Stanton noted that "Abby Smith's quaint, simple speeches attracted attention...and from that time on their fame grew apace.