| SSSH/UATUC | |
| Location Country: | Croatia |
| Affiliation: | ITUC, ETUC |
| Members: | around 135 000 (27 unions) |
| Full Name: | Union of Autonomous Trade Unions of Croatia |
| Native Name: | Savez samostalnih sindikata Hrvatske |
| Founded: | May 1990 |
| Headquarters: | Zagreb, Croatia |
| Key People: | Mladen Novosel, president |
| Website: | www.sssh.hr |
The Union of Autonomous Trade Unions of Croatia (SSSH) is recognized as the principal voice of Croatian trade unionism. It was founded in May 1990, and represents around 1/5 of organized workers in the country. It has 18 affiliated industrial unions.
The SSSH is affiliated to the European Trade Union Confederation and the International Trade Union Confederation.