Ali Wallace (fl. 1840-1907) was the name used by a Malay who accompanied and assisted Alfred Russel Wallace in his travels and explorations from 1855 to 1862. Initially recruited as a cook for his expedition, Ali was later responsible for independently collecting many significant specimens that are credited to Wallace. He also made observations of the birds and the people which were communicated to Wallace. It has been estimated that Ali collected and prepared nearly 5,150 bird specimens. Many of his specimens survive in collections of natural history museums.