William Greenwell (1818-1918) was an English archaeologist and antiquarian known for his significant contributions to the study of prehistoric and Roman Britain. He is particularly recognized for his work in the field of archaeology, where he excavated various sites and published findings that advanced the understanding of ancient cultures. In addition to his archaeological pursuits, Greenwell was also a noted geologist and a member of the British Association for the Advancement of Science. His extensive collection of artifacts and writings has been influential in the study of British history and continues to be referenced by scholars today.