Surname Marcinonis (Marcinonis 
) , around the globe, is a rare last name. The family name Marcinonis is characteristic of Lithuania, where it is quite a rare surname, Poland, where it is a very rare surname, and Argentina. Measured by absolute frequency, it is commonest in Lithuania, the United States, and Poland. Much less frequently, Marcinonis is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Marcinonis | Argentina, Lithuania, Poland, United Kingdom, United States |