Agrippa Hull (1759–1848) was an African-American patriot who served as an orderly to Tadeusz Kościuszko, a Polish military officer, engineer and nobleman, for five years during the American Revolutionary War.

For nearly five years, he was a personal aide for Tadeusz Kościuszko, the Polish engineer and nobleman who was essential to Continental defences.

In the last two years, he worked with doctors and was trained to perform simple operations, including amputations of body parts and fixing broken bones.

Impressed with Hull and other African Americans in the Continentals, Kościuszko became a strong supporter of abolitionism.

As a young attorney, the latter had defended Elizabeth Freeman (Mum Bett) in her freedom suit and helped gain an end to slavery in Massachusetts.