Ada Matilda Cole Bittenbender (August 3, 1848 – December 15, 1925) was an American lawyer and feminist activist.

[2][3] She graduated from Lowell's Commercial College in Binghamton, New York in 1869 and from the Pennsylvania State Normal School at Bloomsburg in 1875.

After graduation, she worked as principal of the Pennsylvania State Normal School for a year before resigning for health reasons.

She later edited Nebraska's first Farmers' Alliance paper, which was dedicated to temperance, morality, and Republican politics.

Along with her husband, she became a partner in the law firm H.C. & Ada M. Bittenbender, which they established in Lincoln in December 1882.

In 1888, Bittenbender was admitted to practice in the Supreme Court of the United States and was elected to the International Woman's Christian Temperance Union.