Antoine Sonrel (died 1879) was an illustrator, engraver, and photographer in Switzerland and Boston, Massachusetts, in the 19th century.
[nb 1] 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.
"Draftsmen of superior talent, trained ... to the greatest accuracy — Weber, Dinkel, and Sonrel — were constantly in [Agassiz's] employ at a regular salary.
"[4] Agassiz wrote in 1857: "I esteem myself happy to have been able to secure the continued assistance of my old friend, Mr. A. Sonrel, in drawing the zoological figures of my work.
More than twenty years ago, he began to make illustrations for my European works ; and ever since he has been engaged, with short interruptions, in executing drawings for me.