| Title | Artist | Song # |
| O Little Town Of Bethlehem | Christmas | 1976 |
| O Tannenbaum | Christmas | 1974 |
| O What A Thrill | Mavericks, The | 4300 |
| O.P.P. | Naughty By Nature | 4641 |
| Ocean Front Property | Strait, George | 609 |
| Ode To Billie Joe | Gentry, Bobbie | 2815 |
| Ode To My Car (Piece Of Shit Car) | Sandler, Adam | 2372 |
| Oh Boy | Holly, Buddy | 1640 |
| Oh Carol | Sedaka, Neil | 1684 |
| Oh Darling | Beatles, The | 1668 |
| Oh Girl | Young, Paul | 4511 |
| Oh Lonesome Me | Gibson, Don | 3672 |
| Oh Look At Me Now | Jazz | 2220 |
| Oh Very Young | Stevens, Cat | 3385 |
| Oh What A Night (December 1963) | Valli, Frankie | 3347 |
| Oh, Carol | Sedaka, Neil | 3427 |
| Okie From Muskogee | Haggard, Merle | 1780 |
| Oklahoma Swing | McEntire, Reba & Vince Gill | 3638 |
| Ol' Red | Shelton, Blake | 1170 |
| Old Country | Chesnutt, Mark | 680 |
| Old Dogs Children & Watermelon Wine | Hall, Tom T. | 1834 |
| Old Flames Can't Hold A Candle To You | Parton, Dolly | 639 |
| Old Hippie Christmas/Bellamy Brothers | Christmas | 3874 |
| Old Time Rock 'n' Roll | Seger, Bob | 2051 |
| On A Mission | Trick Pony | 1219 |
| On A Night Like This | Trick Pony | 1082 |
| On A Slow Boat To China | Jazz | 2200 |
| On And On | Bishop, Stephen | 4568 |
| On Broadway | Drifters, The | 4198 |
| On My Knees | Frickie, Janie & Charlie Rich | 1831 |
| On My Own | LaBelle, Patti & Michael McDonald | 4823 |
| On The Dark Side | Cafferty, John | 3338 |
| On The Road Again | Nelson, Willie | 3684 |
| On The Street Where You Live | My Fair Lady | 2953 |
| On The Sunny Side Of The Street | Day, Doris | 1940 |
| On Your Way Home | Loveless, Patty | 3631 |
| Once Bitten Twice Shy | Great White | 2669 |
| Once In A Blue Moon | Conley, Earl Thomas | 699 |
| Once In A Lifetime Love | Walker, Clay | 992 |
| Once You Loved Somebody | Dixie Chicks | 2408 |
| One | Hill, Faith | 4746 |
| One | Metallica | 4699 |
| One | U2 | 4895 |
| One Bourbon One Scotch One Beer | Hooker, John Lee | 4906 |
| One Boy, One Girl | Raye, Collin | 417 |
| One Day Closer To You | Johnson, Carolyn Dawn | 1194 |
| One Fine Day | Chiffons, The | 4070 |
| One For My Baby | Sinatra, Frank | 2703 |
| One Heart | Dion, Celine | 4991 |
| One Honest Heart | McEntire, Reba | 2445 |
| One Hundred & Two | Judds, The | 671 |
| One Last Breath | Creed | 4657 |
| One Last Breath | Creed | 5002 |
| One Last Time | Drake, Dusty | 3580 |
| One Mic | Nas | 4624 |
| One Moment In Time | Houston, Whitney | 326 |
| One More Day | Diamond Rio | 1026 |
| One More Last Chance | Gill, Vince | 342 |
| One More Night | Collins, Phil | 145 |
| One Night Only | Dreamgirls | 3540 |
| One Night Only (Disco Version) | Dreamgirls | 3541 |
| One Of These Nights | Eagles, The | 179 |
| One Of Those Nights | Brokop, Lisa | 600 |
| One Of Us | Osborne, Joan | 444 |
| One Step At A Time | Jewell, Buddy | 1331 |
| One Step Closer | Linkin Park | 2181 |
| One Thing Leads To Another | Fixx, The | 1416 |
| One Tin Soldier | Coven | 312 |
| One Vision | Queen | 90 |
| One Voice | Gilman, Billy | 969 |
| One Way Or Another | Blondie | 3096 |
| One Way Out | Allman Brothers Band, The | 2432 |
| One Way Ticket | Sedaka, Neil | 3428 |
| One Week | Barenaked Ladies | 4219 |
| One You Love, The | Frey, Glen | 4430 |
| One, The | Allan, Gary | 1144 |
| Only 16 | Cooke, Sam | 4204 |
| Only God | Emerson Drive | 1270 |
| Only God Know Why | Kid Rock | 3864 |
| Only In America | Brooks & Dunn | 1076 |
| Only In My Dreams | Gibson, Debbie | 1534 |
| Only Love | Judd, Wynonna | 355 |
| Only Love Can Break A Heart | Pitney, Gene | 3441 |
| Only One Road | Dion, Celine | 224 |
| Only One Woman | Bee Gees, The | 897 |
| Only The Good Die Young | Joel, Billy | 3024 |
| Only The Lonely | Motels, The | 4574 |
| Only The Lonely | Orbison, Roy | 1510 |
| Only Want To Be With You | Hootie & The Blowfish | 278 |
| Only Woman Bleed | Cooper, Alice | 39 |
| Only You | Platters, The | 1642 |
| Only You Know & I Know | Clapton, Eric | 2491 |
| Ooby Dooby | Orbison, Roy | 3472 |
| Ooh Baby Baby | Jana | 3926 |
| Oops! I Did It Again | Spears, Britney | 2769 |
| Open Invitation | Santana | 3720 |
| Ordinary People | Walker, Clay | 235 |
| Ordinary World | Duran Duran | 4819 |
| Other Side, The | Red Hot Chili Peppers | 2823 |
| Our Love Is On The Faultline | Gayle, Crystal | 655 |
| Out Here On My Own | Cara, Irene | 1539 |
| Out Of My Bones | Travis, Randy | 3746 |
| Outbound Plane | Bogguss, Suzy | 3552 |
| Outrageous | Spears, Britney | 4781 |
| Outside Woman Blues | Clapton, Eric | 2481 |
| Over The Rainbow | Garland, Judy | 3284 |
| Overkill | Men At Work | 799 |
| Oye Como Va | Santana | 1405 |
| Oye Mi Canto | Estefan, Gloria | 113 |