Francis Walker (July 31, 1809 - October 5, 1874) was an English entomologist. Walker was employed by the British Museum between 1844 and 1873. He described a great number of new insects, but unfortunately he was, sometimes, a careless taxonomist, often describing the same species more than once under different specific names. In this respect, however, he was no worse than many continental entomologists. He was born in Southgate, England on 1 July 1809 and died at Wanstead, England October 5, 1874. Walker added an immense amount of material to the collections of the British Museum and wrote 87 scientific papers. He is best known for his catalogues of Orthoptera, Neuroptera, Homoptera, Diptera, Lepidoptera and Hymenoptera.