Tudor was in charge at the Serie A club since March when he replaced Thiago Motta in the role.
Juventus are currently eighth in the Serie A standings while the 1-0 loss against Lazio was their third consecutive defeat in all competitions.
"The club thanks Igor Tudor and his entire staff for their professionalism and dedication over the past few months and wishes them all the best for their future careers," a Juventus statement read.
The club added that Massimiliano Brambilla will take charge of the side for their league fixture against Udinese on Wednesday.
Juventus are also 25th in the Champions League group stage table, having lost once and drawn twice in their opening three matches.
Juventus are reportedly still trying to resolve their contract stand-off with Kenan Yildiz as several Premier League clubs have kept a close eye on one of Europe's brightest young forwards.
Tottenham and Manchester United are reportedly keeping a close watch on Juventus striker Dusan Vlahovic, with the Serbian forward set to become one of the most sought-after free agents in 2026.
Fiorentina have appointed Paolo Vanoli as their new head coach following the dismissal of Stefano Pioli, who oversaw a winless start to the Serie A season that left the club languishing at the bottom of the table.
Luciano Spalletti's arrival at Juventus on October 30, has brought renewed belief and direction to Turin, with the veteran coach already stamping his authority after replacing Igor Tudor.
