Tjautjas (sometimes called Čavččas or Tjautjasjaure) is a locality situated in Gällivare Municipality, Norrbotten County, Sweden with 234 inhabitants in 2010.

Tjautjas is located 20 kilometers north-east of Koskullskulle and can only be reached through that village.

Tjautjas hosts an annual festival each year in August called Flottkalaset, a music and cultural event featuring folk musicians from all over Sweden along with other types of performers such as acrobats, jugglers, and clowns.