The Dutchman initially rejected the chance to take the helm at Notts for family reasons, but has now agreed to take charge of the club.
Chairman Ray Trew spoke of his excitement about the appointment and the wealth of experience Moniz would bring with him to the job.
“Ricardo has a fantastic reputation, not only for the style of football he plays, but also his ability to spot and nurture young talent,” stated Trew.
“In Ricardo we have found that because, having spoken to him at length, his footballing philosophy is one of structured attacking play, which I hope is something that our fans will buy in to.
“I know that when I come to Meadow Lane I want to be entertained, I want to be excited by what I see out there on the pitch.”
Notts currently sit in 22nd place - a relegation spot - in the standings and are one point from safety. County slipped into the relegation zone following three consecutive draws under interim boss Paul Hart.
Moniz has previously held a position on Martin Jol’s coaching staff at Tottenham from 2005 to 2008. He then followed Jol to Germany in 2008 to join Hamburg’s staff before managing Red Bull Salzburg in Austria, winning the double in 2011-12.
Moniz has also been an assistant coach for the UAE national team and Feyenoord. He was sacked from his last managerial position at TSV 1860 Munich in 2014.
