Petar Krstic (February 18, 1877 in Belgrade – January 21, 1957) was a Serbian composer and conductor known throughout Yugoslavia.
Krstic studied under the Austrian composer Robert Fuchs and the Bohemian-Austrian musicologist Guido Adler in Vienna (Pejovic 2001).
He worked as a conductor and pedagogue in Belgrade as well as musical leader of Belgrade radio.
His most famous operas include Zulumcar (1927) and Ženidba Jankovic Stojana (1948).
He is best known for his overtures, chamber-musical works, and choir works.