Pietro Garinei (1 February 1919 – 9 May 2006) was an Italian playwright, actor, and songwriter.
Garinei was born in Trieste, where he obtained a degree in pharmacy. He later worked as a journalist for the daily newspaper Corriere dello Sport, where he met Sandro Giovannini. Garinei and Giovannini discovered a shared interest in music and entertainment, and left the paper shortlyafter to found the satiric newspaper Cantachiaro in 1944.
Following the end of World War II, Garinei and Giovannini collaborated with the Radio RAI. In 1949 they started working as playwrights, and in 1952 they wrote one of Italy's first musical comedy, Attanasio cavallo vanesio, featuring Renato Rascel. Garinei and Giovaninni also wrote a series of musicals such as Un paio d'ali, Ciao Rudy, Rugantino, Aggiungi un posto a tavola. Actors who regularly performed in their comedies include Nino Manfredi, Gino Bramieri, Sandra Mondaini, Walter Chiari, Domenico Modugno, Massimo Ranieri, Raffaella Carrà, Marcello Mastroianni, Giulio Scarpati and Nancy Brilli.
Garinei and Giovannini also wrote the lyrics for many pop songs, including "Arrivederci Roma" and "Domenica è sempre domenica".
Garinei died in Rome in 2006.