Cognomen Withman (Withman 
) , throughout the world, is a very rare last name. The cognomen Withman is habitual in Latin America and the Caribbean, particularly Nicaragua, where it is a very rare surname, Venezuela, and Honduras. Measured by absolute frequency, this name is the most popular in the United States, Venezuela, and Nicaragua. Likewise, Withman is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Withman | Peru, Venezuela, Nicaragua, United States, India |