Tomás Herrán

Tomás Herrán y Mosquera (September 21, 1843 – 1904), a Colombian diplomat, signed and became a namesake of the Hay–Herrán Treaty of 1903.

At the time of the Hay–Herrán Treaty, Herrán served as Colombian chargé d'affaires in the United States of America. Herrán's papers were later published as The Letters of Tomás Herrán and the Panama Crisis, 1900-1903, edited by Thomas J. Dodd, Jr.