Pietro "Pete" Rugolo (December 25, 1915 – October 16, 2011) was an Italian-born American jazz composer and arranger.
Rugolo was born in San Piero Patti, Sicily. His family emigrated to the United States in 1920 and settled in Santa Rosa, California. He began his career in music playing the baritone horn, like his father, but he quickly branched out into other instruments, notably the French horn and the piano. He received a bachelor's degree from San Francisco State College, and then went on to study composition with Darius Milhaud at Mills College in Oakland, California and earn his master's degree.
After he graduated, he was hired as an arranger and composer by guitarist and bandleader Johnny Richards. He spent World War II playing with altoist Paul Desmond in an Army band.
After the war, Rugolo worked for Stan Kenton, who headed one of the most musically progressive big bands of the era. He and the songwriter Joe Greene collaborated on songs that made Kenton's band one of America's most popular. Rugolo provided arrangements and original compositions that drew on his knowledge of 20th-century music, sometimes blurring the boundaries between jazz and classical music.