Jim Peterik (born November 11, 1950 Berwyn, Illinois) is an American musician and songwriter. Jim is best known as one of the members in the band,Survivor and as vocalist and songwriter of the hit song "Vehicle" by The Ides of March. He also co-wrote the anthem "Eye of the Tiger," which is the theme from the motion picture Rocky III.

Peterik formed his most successful band, Survivor, in 1978.

In the early years of Survivor, Peterik continued to co-write hits for other artists, including 38 Special and Sammy Hagar. In 1982, Sylvester Stallone commissioned Survivor to write and perform the theme song for his movie, Rocky III. This song, "Eye of the Tiger," would end up becoming their defining single, spending six weeks at #1 on the Billboard Hot 100 and going double platinum; plus it won them a Grammy Award and a nomination at the Academy Awards. This was followed by their 1984 album Vital Signs, which featured the top 10 hits "High on You" (#8) and "The Search Is Over" (#4), plus another sizable hit in "I Can't Hold Back" (#13).