La porta rossa ([la ˈpɔrta ˈrossa], lit. 'The Red Door') is an Italian noir television series created by Carlo Lucarelli and Giampiero Rigosi for Rai Fiction. It premiered on Rai 2 on February 22, 2017 and concluded on February 1, 2023, having aired 32 episodes over three seasons.

The pilot episode attracted the largest audience of the night, amassing 3.284 million viewers, more than double the network average at the time. The series was praised for being "the only [Italian] mainstream TV crime series that resembles genre literature and not a mainstream TV drama", its "modern and demanding" visuals and dark setting, but its second season was criticized as "excessively distressing".