Struber was appointed at Ashton Gate in June after Liam Manning, who had taken the club into the play-offs, left to become Norwich City’s manager.
The 49-year-old Austrian had a year in charge of Barnsley (2019–20) and later managed New York Red Bulls, Red Bull Salzburg and Cologne, and had signed a contract running to the summer of 2028.
He had recently criticised the perceived lack of depth in the club’s academy and expressed frustration at the January departures of Vyner and Mehmeti.
“I would like to thank Gerhard and Bernd for their hard work over the past nine months and we wish them all the best,” City chief executive Charlie Boss said.
“Roy’s appointment is about more than the results of the next seven games.
“Over the remainder of the season, he will help us set the standards and values at the club that we will need to be successful going forwards.
“Roy is a vastly experienced coach who has achieved and won at the highest level. He will support me, our players and our football staff as we build towards achieving our potential.
“We are in the process of appointing a sporting director who will have a direct input into the recruitment of a new permanent head coach.”
