Antoine Sonrel (died 1879) was an illustrator, engraver, and photographer in Switzerland and Boston, Massachusetts, in the 19th century. He moved from Neuchâtel to the United States around the late 1840s, and was affiliated with Louis Agassiz throughout his career. As a photographer he created numerous carte de visite portraits in the 1860s and 1870s; subjects included his friend Agassiz, Oliver Wendell Holmes, Sr., Oliver Wendell Holmes, Jr., Abbott Lawrence Rotch, and sculptor Anne Whitney.