Cognomen William James (William James 
) , throughout the world, is a very rare last name. The last name William James is habitual in Ireland, where it is a rare surname, New Zealand, where it is a very rare surname, and Singapore. Measured by absolute frequency, the name is most common in Ireland, Spain, and Chile. Predominantly, William James is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| William James | Cuba, United Kingdom, Australia, Ghana, Philippines |
Loh, Lepage, Howell, Varley, Fowler, Ogrady, Wright, Mclarty, Mcfaull, Kennedy, Delgado, Disbery, Ellwood, Escutin, Francis, Whatnall, Maglanque, Meredith, Kreibich, Richards, Gallagher, Granville, Drewry, Peters, Street, Santos, Cook, Kerr, Kemp, Reid, Ryan, Hunt, Owen, Wood, Sidis, Scott, Francisco, Smith, Paget, Dyson, Logie, Trent, Higgs, Yates, Quinn, Manuel, Moxham, Mcgurk, Brown, and Stainthorpe