Union of Italian Communists (Marxist–Leninist) Unione dei Comunisti Italiani (marxisti-leninisti)
Abbreviation	UCI(m-l)
General Secretaries	Aldo Brandirali
Founded	1968 (1968) (as Union of Italian Communists (Marxist–Leninist)) 1972 (1972) (as Italian (Marxist–Leninist) Communist Party)
Dissolved	1978 (1978)
Newspaper	Servire il Popolo La Voce Operaia
Youth wing	Union of Communist Youth in Service of the People
Ideology	Communism Marxism–Leninism Maoism
Colours	Red
Politics of Italy Political parties Elections

Union of Italian Communists (Marxist–Leninist) (Italian: Unione dei Comunisti Italiani (marxisti-leninisti)) was a pro-Chinese communist group in Italy. The UCI(m-l) was founded in Rome on 4 October 1968. Its main organ was Servire il popolo. The main leaders of UCI(m-l) were Aldo Brandirali, Enzo Todeschini, Angelo Arvati and Enzo Lo Giudice.

After a schism at the end of 1970, the main group of the leaders moved from Rome to Milan.

On 15 April 1972 the UCI(m-l) was transformed into Italian (Marxist–Leninist) Communist Party (Partito Comunista (marxista-leninista) Italiano). With the appearance of the Leninist poet Francesco Leonetti in the party, the theoretical organ of PC(m-l)I became known as Che fare.

The PC(m-l)I had a front organization amongst Italians in West Germany, called Union of Italian Migrant Workers (Federazione Italiani Lavoratori Emigrati).

The PC(m-l)I was dissolved in 1978, and its remaining adherents largely became involved in Autonomia Operaia.

The youth wing of the organization was called: Union of Communist Youth in Service of the People.