Claudio Simonetti (born February 19, 1952 in São Paulo, Brazil) is an Italian composer who has specialized in the scores for Italian and American horror films since the 1970s. He was also the keyboard player for the Italian progressive rock band Cherry Five/Goblin.

Simonetti is probably best-known for his electronic score to the George Romero classic Dawn of the Dead, but is also highly-regarded for his work in the films of Italian horror maestro Dario Argento, with whom he has worked almost exclusively since 1975.

Goblin's score to his film Profondo rosso was one of the highest-selling horror movie soundtracks ever produced.When Goblin disbanded in 1979, Claudio began his solo career as an electronic musician. The band reunited, however, in 2000 to score the Argento film Non ho sonno and received outstanding critical acclaim.

Beginning in 1978, Claudio founded a number of electronic disco projects that along with Celso Valli (Azoto), Stefano Pulga ( Kano) and Giorgio Farina ('Lectric Workers), casts him as one of the founders of Italo Disco.

In 1979 with Giancarlo Meo, he formed perhaps his best-known project behind singer Vivien Vee. (Viviana Andreattini), whose song "Give Me a Break" became a minor hit in the American dance charts. Later Vivien Vee tracks particularly "Blue Disease" from 1983, showcased some of the darker and edgier sounds familiar from the Goblin years.

Another project was Easy Going, with "Fear" from 1979 also an American hit.