Greg O'Connor is an American composer and songwriter who has composed scores for over 30 television series and has written numerous featured songs for TV, films and commercials. He is a Primetime Emmy winner and a four-time Emmy nominee. He has scored projects including variety, single camera comedy, multi camera comedy, animation, one hour drama, game show, sketch comedy, award show, stand up, reality, hidden camera, documentary, commercials and virtual reality.^{[1][2][3][4][5][6][7][8][9]}

O'Connor was born in Philadelphia. O'Connor is a graduate of The University of Notre Dame’s Music School as well as the Scoring for Motion Pictures and Television Program at USC.^[10][11] He began studying music at age six, taking piano lessons at the Bryn Mawr Conservatory of Music in Bryn Mawr PA, a suburb of Philadelphia. O'Connor also played alto saxophone for eight years. His education included performing in various ensembles, either as a pianist, saxophonist or vocalist, including concert band, jazz band, glee club and various top 40 bands throughout high school and college.^[12][13]

He has written songs with collaborator James Pankow for the band Chicago, as well as the song "Here With Me" for the Chicago album Stone of Sisyphus.^[14]

O'Connor was nominated for a Primetime Emmy Award as a composer for the comedy show Mad TV.^[15]

O'Connor scored the animated feature film Bobbleheads: The Movie for Universal Pictures.^{[citation needed]} In 2020, he composed the company logo music for Academy Awards producer Rob Paine.^{[citation needed]}