William Smith (disambiguation) refers to multiple individuals who share the name William Smith, each notable in different fields or contexts. This includes figures such as William Smith, the English geologist known for creating the first nationwide geological map, and William Smith, the American politician who served in various governmental roles. Additionally, the name may refer to various other professionals, including artists, athletes, and academics. Each William Smith has made contributions in their respective areas, leading to the need for disambiguation to clarify their identities and achievements.