​​​​​Jack Frerer (b. 1995) is an Australian composer of music for concert and film, as well as an instrumentalist, producer and filmmaker based in Manhattan, currently studying composition with Robert Beaser and John Corigliano at The Juilliard School with the help of the Adrian Weller Scholarship and the Steuermann Memorial Prize. Jack has written pieces and arrangements for a variety of ensembles and performers, and has had works performed around Australia, Europe and the US.

In 2016, his trio Last In, First Out was given both first prize and the audience prize in the Alba Rosa Viëtor Composition Competition in Utrecht, was a winner of the Indiana State University Music Now competition, and was third prize winner of the Belvedere Festival composition competition. In 2014 Jack won the inaugural Matt Withers Young Australian Music Composition Competition open to all Australian music majors under 30, became the youngest ever finalist in APRA and Tropfest's Tropscore, and was one of three Australian composers selected to partake in the Ku-ring-gai Philharmonic's Emerging Composers Workshop.  Jack has been an ASCAP Morton Gould Award finalist.

 As a producer, Jack has worked with bands and artists spanning a wide range of genres, having engineered and produced for bands including Shouthouse and Thunderfox, performers including pianists Athena Tsianos and Luke Ratcliffe, string players Esther Hwang and Rachel Siu, and the music of composers Nicky Sohn, Camden Boyle, Bobby Volkman, Jack Gulielmetti, Andrew Howes, Anne Wang and Will Healy, as well as many others. He regularly produces music for short films and commercials, as well as recordings for portfolios and applications.

As a guitarist, Jack has played in venues including the Sydney Opera House, City Recital Hall Angel Place, the Chatswood Concourse, and Juilliard's Willson Theater. In 2013, Jack was nominated for the Sydney Opera House's Encore concert as a jazz guitarist.

As a filmmaker, Jack directed and produced an interactive film presentation as part of the performance "Trust Me" at Juilliard's 2016 InterArts concert. In 2015 he created a film celebrating the retirement of ABT principal dancer and current artistic director of the Washington Ballet Julie Kent, featuring Kent and Marcelo Gomes. In 2013 his short film Apeiron was selected for the esteemed ArtExpress, and was exhibited in several galleries around New South Wales. He also works on films regularly with performers at Juilliard, having recently worked on projects with dancers Evan Rapaport, Julio Sierra, Nick Jurica, Taylor LaBruzzo and Simon Rydén.