William Somerville
William Somerville may refer to:
- William Somervile, English poet, also written as William Somerville
- William Somerville (cricketer), New Zealand cricketer
- William Somerville (physician), Scottish physician
- William E. Somerville, Scottish aircraft engineer
- William Lyon Somerville, Canadian architect
- William Lorne Northmore Somerville, Canadian lawyer
- William Somerville, 1st Baron Athlumney, Anglo-Irish politician
- William C. Somerville, American plantation owner, author, historian and diplomat
- William Somerville, [2nd Lord Somerville], member of the Scottish Parliament
- William Somerville (priest), Archdeacon of Armagh
- Sir William Somerville (agriculturalist), British agriculturalist