Chiasiellis (Friulian: Cjasielis, German: Katzelsdorf[1]), sometimes Chiasiellis di Mortegliano (Cjasielis di Mortean) or Chiasellis, is a hamlet in the Friuli-Venezia Giulia region of north east Italy.
It lies to the east of the main village of Mortegliano and has around 500 inhabitants.
The name of the village comes from a Friulian word meaning "boxes" which described the small houses of local farmers and shepherds.
The hamlet is home to the women's Chiasiellis Calcio football club, a team that made it to the Serie A finals in 2008.
The team also participates in Italian championship beach soccer and, in 2007, won the national title.