Geminiano Giacomelli (sometimes Jacomelli) (28 May 1692 – 25 January 1740) was an Italian composer.

In 1724 he was named to the post of Kapellmeister to the Duke of Parma.

He also wrote a deal of sacred music, including eight psalm settings for tenor and bass, and some concertos with continuo.

In 1738 Giacomelli again became Kapellmeister, this time at the Basilica della Santa Casa in Loreto; he died in Loreto in 1740.

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