Australia's A-League champions Brisbane Roar on Monday appointed former Dutch international Frans Thijssen as the club's new head coach.

Thijssen, 62, replaces Mike Mulvey, who was sacked on Sunday just six months after steering the Roar to the premiership-championship double.

"Brisbane Roar FC believe Frans Thijssen's background and experience will be a significant asset to the club," managing director Sean Dobson said.

"The Brisbane Roar FC board have every confidence Frans Thijssen will inject new vigour into the team and Brisbane Roar's A-League title defence."

A statement on the club's website said Thijssen had been appointed "interim" head coach but gave no details on the length of his contract.

English-born Mulvey, last season's A-League coach of the year, paid the price for his team's poor start to the season, with five losses and just one win from their first six matches.

Thijssen, who played 14 times for the Netherlands, has coached in the United Arab Emirates and Qatar in recent years.

He previously was head coach at Swedish club Malmo and Dutch clubs Vitesse, De Graafschap and Fortuna Sittard.