Thomas Willing (December 19, 1731 – January 19, 1821) was an American merchant, politician and slave trader who served as mayor of Philadelphia and was a delegate from Pennsylvania to the Continental Congress.

His brother, James Willing, was a Philadelphia merchant who later served as a representative of the Continental Congress and led a 1778 military expedition to raid holdings of British loyalists in Natchez, Mississippi.

[4] In 1749, after studying in England, he returned to Philadelphia, where he engaged in mercantile pursuits in partnership with Robert Morris.

[5][6] They established the firm Willing, Morris and Company in 1757, which exported flour, lumber and tobacco to Europe while importing sugar, rum, molasses, and slaves from the West Indies and Africa.

[12] In August 1807, Willing suffered a slight stroke, and within a few months, he resigned his position with the bank for health reasons.

Together, they had thirteen children, including:[5] Willing died in 1821 in Philadelphia, where he is interred in Christ Church Burial Ground.