Last name Smitheram (Smitheram 
) , in all the world, is a rare cognomen. The surname Smitheram is habitual in Isle of Man, where it is quite a rare surname, New Zealand, and Australia, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in the United Kingdom, Australia, and New Zealand.
| VARIANT | COUNTRY |
|---|---|
| Smitheram | United Kingdom, Australia, United States, Canada, New Zealand |
| brett smitheram Scrabble Grand Master, GB (b. 1979) |
|