Globally, Sinka (Sinka 
) is a rare unisex forename. The first name Sinka is habitual in Hungary, where it is a rare epicene name, Algeria, where it is a rare boy's name, and Indonesia, where it is a very rare unisex name. In absolute terms, it most frequently occurs in India, Indonesia, and Algeria. More prevalently, Sinka is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sinka | Romania, Poland, Hungary, Tanzania, India |