Last name Tyso (Tyso 
) , all over the world, is a very rare family name. The cognomen Tyso is characteristic of New Zealand, where it is a very rare surname, Australia, and the United Kingdom. Not in comparison with a country's population, the name is most common in the United Kingdom, Australia, and the United States. Very seldom, Tyso is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tyso | New Zealand, United Kingdom, United States, Australia |
| joseph tyso Tyso, Joseph (1774–1852), Baptist minister and plantsman (b. 1774) |
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