Edwin Nicholas Arnold (16 October 1940 – 23 September 2023) was a British herpetologist and the Curator of Herpetology at the Natural History Museum, London. Arnold made seminal contributions to the herpetology of Europe and North Africa, especially on geckos and lizards of the family Lacertidae. He discovered and described 36 species and 4 subspecies of reptiles,[1] and wrote A Field Guide to the Reptiles and Amphibians of Britain and Europe, which appeared over multiple editions.[2] Arnold died of heart failure on 23 September 2023, at the age of 82.[3][4]