Festival dijadwalkan dari 13 Jun hingga 15 Jun 2003 (2 hari).
Bonnaroo Music Festival berlangsung di Manchester, United States. Berikut adalah alamat lengkap festival: Great Stage Park, Manchester, Tennessee, U.S
Jason Mraz, Jack Johnson, Sticky Fingers, Emmylou Harris, O.A.R., Gavin DeGraw, My Morning Jacket, Lucinda Williams, The Roots, The Flaming Lips.
Genre dan sub-genre yang paling populer dari edisi sebelumnya adalah:
rock
folk
funk
jam
alternative
indie
jam band
acoustic
alternative rock
electronica
indie rock
experimental
psychedelic
blues rock
chillout
instrumental
jam bands
acoustic rock
americana