Zachariah Dearborn Lewis (November 25, 1859 – March 15, 1926) was an influential Baptist church leader and the first president of the Southern Aid and Insurance Company based in Richmond, Virginia.

[1] Lewis was organizer and the first president of the Southern Aid and Insurance Company based in Richmond, Virginia.

The company wrote insurance for industrial life, accident and sick benefits insurance and was licensed in New Jersey, Virginia and District of Columbia, and had offices in Alexandria, Bristol, Charlottesville, Danville, Farmville, Fredericksburg, Lynchburg, Newport News, Norfolk, Petersburg, Portsmouth, Richmond, Roanoke, Saluda, Suffolk, Winchester, Virginia; and Washington, D.C.[3] Lewis was politically influential and became involved in leadership disputes within the African American Baptist community of Richmond.

[1][3][5] In 1898, he delivered what Lucy Coles would describe as a fiery speech opposing her attempt to collect funds for a mission building in Liberia.

He was a member of the board of trustees of the Virginia Union University and director of the St. Luke Bank and Trust Company.

He was a member of the executive board of the Lott Carey Baptist Foreign Mission Convention.