By Jamie Gardner and Jonathan Veal, PA
The Australian was sacked by the north London club just 16 days after leading them to Europa League glory.
He will now get another crack at the Premier League and European football at the City Ground and Marinakis has brought him in to win trophies.
The Greek businessman said: “We are bringing a coach to the club who has a proven and consistent record of winning trophies.
“His experience of coaching teams at the highest level, along with his desire to build something special with us at Forest, makes him a fantastic person to help us on our journey and achieve consistently all our ambitions.
“After gaining promotion to the Premier League, then building consistently season after season to secure European football, we now must take the right step to compete with the very best and challenge for trophies.
“Ange has the credentials and the track-record to do this and we are excited he is joining us on our ambitious journey.”
Ange Postecoglou (centre) celebrated winning the Europa League with Tottenham last season. Photo: Nick Potts/PA.
And he is set for a swift return to north London as Forest visit Arsenal in the Premier League on Saturday lunchtime.
The 60-year-old spent two seasons at Spurs and ended their trophy drought last season, but did so at the expense of the league, where they finished 17th.
Nuno was relieved of his duties on Monday night after publicly falling out with Marinakis this summer.
The 51-year-old was given a new contract in June after guiding Forest into the Europa League last term, their first European qualification since 1995, but cracks were beginning to show behind the scenes.
Nuno had a poor working relationship with global head of football Edu Gaspar and his bond with Marinakis suffered as a result.
He questioned the club’s transfer business ahead of the new season and then pre-empted his own sacking by saying “where there’s smoke, there’s fire” when asked about his future at the club.
We are bringing a coach to the club who has a proven and consistent record of winning trophies
He was set for peace talks with Marinakis during the international break, but the Greek businessman pulled the plug without them happening.
Forest said in a statement: “Nottingham Forest Football Club confirms that, following recent circumstances, Nuno Espirito Santo has today been relieved of his duties as head coach.
“The club thanks Nuno for his contribution during a very successful era at the City Ground, in particular his role in the 2024/25 season, which will forever be remembered fondly in the history of the club.
“As someone who played a pivotal role in our success last season, he will always hold a special place in our journey.”
Forest sacked Nuno Espirito Santo on Monday. Photo: John Walton/PA.For the latest Waterford News and Sport, tune into WLR News on the hour and download the WLR App for news on demand.