The post was vacated after Nabil Maaloul handed in his resignation on the back of an underwhelming 2018 World Cup campaign where the Carthage Eagles suffered a group stage exit.
Maaloul proceeded to join Qatari reigning champions Al Duhail, and the Tunisian Football Federation have afforded Benzarti his fourth stint at the helm, after occupying the position in 1994, 2010 and 2011.
"Faouzi Benzarti has been appointed to coach the Tunisian National team for two seasons with a possibility of renewal," a statement from the federation read.
"He's been tasked to select his assistant coaches as well."
Top on the former Libya coach's priority list is qualifying the nation for 2019 African Cup of Nations to be held in Cameroon.
And he kick-starts his fourth reign with a trip to Swaziland for an Afcon qualifier on September 7.