PCDI

PCDI may refer to:
 * Ashworth College, formerly Professional Career Development Institute
 * Communist Party of Italy (Partito Comunista d’Italia), a communist political party in Italy which existed 1921–26
 * Communist Party of Italy (2014) (Partito Comunista d'Italia), a short-lived communist party in Italy 2014–16
 * People's Commissariat of Defence Industry of the USSR, the central offices in the Soviet Union that oversaw production of the defense industry