| Obskuros | 5 | $42 | 3 | Wed, 11/4/2026 7:00 PM EST in Santa Ana, CA |
| Ocean Alley | 1 | $73 | 59 | Fri, 11/13/2026 8:00 PM EST in Honolulu, HI |
| Oceans the Imposters | 1 | $33 | 1 | Wed, 11/25/2026 5:30 PM EST in Solana Beach, CA |
| Odd Men Out | 1 | $56 | 0 | Sat, 10/31/2026 6:00 PM EST in Frenchtown, NJ |
| Oddly Shrugs | 1 | | 1 | Fri, 10/2/2026 7:00 PM EST in Reno, NV |
| Of Monsters and Men | 2 | $61 | 37 | Fri, 10/2/2026 8:00 PM EST in New Orleans, LA |
| Oh Kee Pa Orchestra - Phish Tribute | 1 | $66 | 0 | Wed, 10/7/2026 8:00 PM EST in Portland, ME |
| Oh What A Night - A Tribute to Frankie Valli and the Four Seasons | 3 | $126 | 31 | Sat, 10/24/2026 3:00 PM EST in Tomball, TX |
| Ohms - Deftones Tribute | 1 | $57 | 0 | Sat, 10/3/2026 9:00 PM EST in Raleigh, NC |
| Oingo Boingo Former Members | 7 | $66 | 33 | Sat, 10/10/2026 8:00 PM EST in Fontana, CA |
| OK IMPOSTER - Radiohead Tribute | 1 | $33 | 0 | Fri, 11/6/2026 8:30 PM EST in Hattiesburg, MS |
| Old Enough to Know Better | 2 | $32 | 1 | Sat, 11/28/2026 5:00 PM EST in Dallas, TX |
| On Company Time | 12 | $56 | 8 | Thu, 10/8/2026 8:00 PM EST in Washington DC, DC |
| On the Border - The Ultimate Eagles Tribute | 10 | $73 | 100 | Thu, 10/8/2026 8:00 PM EST in Charleston, SC |
| On The Lash | 3 | $48 | 1 | Sun, 11/15/2026 3:00 PM EST in St. Louis, MO |
| Once an Outlaw | 1 | $68 | 10 | Thu, 10/29/2026 8:00 PM EST in Gloucester, MA |
| One - U2 Tribute | 2 | $138 | 1 | Fri, 11/13/2026 7:00 PM EST in Delavan, WI |
| One After 919 - A Triangle Tribute to the Beatles | 1 | $32 | 1 | Thu, 12/31/2026 8:00 PM EST in Chapel Hill, NC |
| One Armed Boxer | 1 | $32 | 1 | Sat, 10/10/2026 8:00 PM EST in Chicago, IL |
| One More Night - Phil Collins Tribute | 2 | $110 | 5 | Thu, 1/14/2027 7:00 PM EST in Vero Beach, FL |
| One Night of Queen | 5 | $60 | 257 | Fri, 3/19/2027 7:30 PM EST in Glen Ellyn, IL |
| One Of These Nights | 1 | $109 | 15 | Sat, 11/28/2026 7:30 PM EST in Folsom, CA |
| One Of These Nights - Eagles Tribute | 3 | $76 | 24 | Mon, 10/19/2026 7:30 PM EST in Peoria, AZ |
| One Step Closer | 1 | $36 | 47 | Thu, 11/19/2026 7:30 PM EST in Cleveland, OH |
| One Time Weekend | 2 | $62 | 20 | Sat, 10/24/2026 8:00 PM EST in Lowell, MA |
| One Vision of Queen | 9 | $74 | 68 | Fri, 10/9/2026 8:00 PM EST in Metairie, LA |
| Onelinedrawing | 1 | $60 | 1 | Wed, 10/28/2026 7:00 PM EST in Philadelphia, PA |
| Open Fire | 1 | $27 | 0 | Sun, 10/11/2026 7:00 PM EST in Syracuse, NY |
| Operation Mindcrime | 3 | $97 | 11 | Fri, 11/13/2026 8:00 PM EST in Homer, NY |
| Orange Dog Club | 5 | $51 | 2 | Sat, 10/10/2026 8:00 PM EST in Chicago, IL |
| Ordinary Boys - Tribute to The Smiths | 2 | $40 | 18 | Sat, 10/3/2026 7:30 PM EST in Greenville, SC |
| Ordinary World - Duran Duran Tribute | 1 | $28 | 2 | Fri, 10/30/2026 8:00 PM EST in Lakewood, OH |
| Organ Fairchild | 3 | $38 | 24 | Wed, 10/7/2026 7:00 PM EST in Atlanta, GA |
| Origami Button | 2 | $52 | 3 | Sun, 11/1/2026 7:30 PM EST in Cleveland, OH |
| Origami Summer | 1 | $61 | 1 | Tue, 10/13/2026 8:00 PM EST in Washington DC, DC |
| Orlando Ghoulies | 1 | $68 | 0 | Sun, 12/20/2026 7:00 PM EST in Winter Park, FL |
| Orleans - Band | 9 | $74 | 31 | Sat, 10/3/2026 8:00 PM EST in Morton, MN |
| Osees | 14 | $68 | 90 | Fri, 10/2/2026 8:00 PM EST in Los Angeles, CA |
| Oso Oso | 30 | $56 | 44 | Wed, 10/7/2026 6:30 PM EST in Allston, MA |
| Our House - The Music of Crosby Stills Nash and Young | 8 | $140 | 45 | Thu, 10/15/2026 7:30 PM EST in Des Moines, IA |
| Ours | 1 | $65 | 13 | Wed, 11/18/2026 8:00 PM EST in Chicago, IL |
| Out in Front | 1 | $34 | 9 | Wed, 10/28/2026 8:00 PM EST in Tucson, AZ |
| Outside Dog | 1 | | 3 | Sun, 10/18/2026 7:00 PM EST in Nashville, TN |
| Overkill | 1 | $92 | 30 | Sat, 10/3/2026 6:30 PM EST in Brooklyn, NY |
| Ovoid | 1 | $48 | 1 | Fri, 10/9/2026 8:00 PM EST in Portland, OR |
| Ozark Mountain Daredevils | 1 | $46 | 87 | Sat, 11/14/2026 8:30 PM EST in Kansas City, MO |
| Ozma | 1 | | 3 | Fri, 12/4/2026 8:00 PM EST in Nashville, TN |
| Ozz - A Tribute to Ozzy Osbourne | 1 | $33 | 13 | Sat, 11/14/2026 9:00 PM EST in Houston, TX |
| Ozzmania | 2 | $45 | 3 | Fri, 11/6/2026 7:30 PM EST in Scottsdale, AZ |
| Ozzy Crue - Ozzy Osbourne Tribute | 1 | $40 | 0 | Sat, 10/24/2026 8:00 PM EST in Knoxville, TN |
| Ozzy Rebourne - Ozzy Ozbourne Tribute Band | 1 | $40 | 8 | Fri, 12/4/2026 7:00 PM EST in Chesterfield, MI |
