Surname Cincius (Cincius 
) , across the world, is a very rare family name. The cognomen Cincius is characteristic of Lithuania, where it is a rare surname, New Zealand, where it is a very rare surname, and the United Kingdom. Measured by absolute frequency, this name is the most popular in Lithuania, the United Kingdom, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Cincius | Canada, Lithuania, New Zealand, United Kingdom, United States |
| m. cincius |
|