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Benjamin Albertson Willis (March 24, 1840 – October 14, 1886) was a U.S. Representative from New York.

Born in Roslyn, New York, the eldest son of Charles Willis and Abigail Albertson, Willis was graduated from Union College in 1861. He studied law, was admitted to the bar in 1862 and commenced practice in New York City. During the Civil War, he enlisted in the Union Army in 1862. He served as captain in the One Hundred and Nineteenth New York Volunteers, and subsequently colonel of the 12th New York Volunteer Infantry. He was honorably discharged in 1864. He resumed the practice of law, and was a member of the New York State Assembly 1872-1878.

Willis was elected as a Democrat to the Forty-fourth and Forty-fifth Congresses (March 4, 1875 – March 3, 1879). He served as chairman of the Committee on Expenditures in the Department of the Navy (Forty-fifth Congress). He was an unsuccessful candidate for reelection in 1878 to the Forty-sixth Congress. He engaged in the practice of law and also in the real estate business. He married Lillie Evelyn Macauley, daughter of William Macauley and Mary S. Underhill, and had three children: Kate T. Willis, Portia Willis and Benjamin A. Willis Jr. He died in New York City on October 14, 1886. He was interred in Friends Cemetery, Westbury, Long Island. He was reinterred in Woodlawn Cemetery.

• United States Congress. "Benjamin A. Willis (id: W000558)". Biographical Directory of the United States Congress. Retrieved on 2008-09-28
• Underhill Genealogy Vol. 5, pg 354 & 500, edited by Edwin Deats and Harry Macy, published 1980.

• Works by or about Benjamin A. Willis at the Internet Archive
• "Benjamin A. Willis". Find a Grave. Retrieved 2008-09-28.

 This article incorporates public domain material from the Biographical Directory of the United States Congress