| Oh Blah Di | Singing Call Tony Oxendine Fine Tune 195 | |
| Oh By Jingo | Singing Call Bill Castner Old Timer 8152 | |
| Oh By Jingo | Singing Call J.P. Jett Rockin' A 1307 | |
| Oh Carol | Singing Call Glenn Wilson Knee-Deep Melodies 147 | |
| Oh Carol | Singing Call Glenn Wilson Shindig Productions 1100 | |
| Oh Carol | Patter Yaoko 9718 | |
| Oh Christmas Tree | Singing Call Graham Elliott Omar 104 | |
| Oh Christmas Tree comments | Singing Call Nils Trottmann, Krista Baird Riverboat 1067 | |
| Oh Come All Ye Faithful / Red Wing | Patter (two instrumentals) Black Mountain Valley 19 | |
| Oh Hanukkah | Singing Call Aaron Wells Riverboat 704 | |
| Oh Happy Day | Singing Call Vic Kaaria, David Mee, Steve Moore, Scott Smith Chic 1040 | |
| Oh Happy Day | Singing Call Deborah Carroll-Jones, Patty Greene, Shauna Kaaria Chic 2040 | |
| Oh Heart Of Mine | Singing Call Jerry Biggerstaff Platinum 224 | |
| Oh Holy Night | Singing Call Brent Mawdsley, Krista Baird, Nils Trottmann, Jack O'Leary, Kumi Takahashi, Hanna Tenenbaum Riverboat 1034 | |
| Oh Honey Oh Babe | Singing Call Sara Aamot, Jerry Rash Sun Ra 1022 | |
| Oh Johnny | Singing Call Mac McCullar Big Mac 126 | |
| Oh Johnny | Singing Call John Eubanks Big Mac 69 | |
| Oh Johnny | Singing Call Dick Leger Grenn 12127 | |
| Oh Johnny | Singing Call Brian Hotchkies Grenn 12423 | |
| Oh Johnny | Singing Call Joel Kadish Hi Hat 314 | |
| Oh Johnny | Singing Call Fenton Jones MacGregor 2042 | |
| Oh Johnny Oh | Singing Call Jerry Story Riverboat 265 | |
| Oh L'Amour | Singing Call Nils Trottmann New Beat 504 | |
| Oh Little Town Of Bethlehem | Singing Call Joe Goins, Greg Hatmaker, Marty Northrup Silver Eagle 122 | |
| Oh Lonesome Me | Singing Call Al Frazier Alliance 110 | |
| Oh Lonesome Me | Singing Call Ron Mineau Big Mac 111 | |
| Oh Lonesome Me | Singing Call Lem Smith Bogan 1283 | |
| Oh Lonesome Me | Singing Call Ron Schneider Dance Ranch 660 | |
| Oh Lonesome Me | Singing Call Dick Waibel Hi Hat 484 | |
| Oh Lonesome Me | Singing Call Dick Houlton Hi Hat 398 | |
| Oh Lonesome Me | Singing Call Joe Porritt Jopat 219 | |
| Oh Lonesome Me | Singing Call Wayne West MacGregor 2460 | |
| Oh Lonesome Me | Singing Call Don Henderson Old Timer 1401 | |
| Oh Lonesome Me | Singing Call Wade Driver, Jerry Story Rhythm 183 | |
| Oh Lonesome Me | Singing Call Wade Driver Rhythm 447 | |
| Oh Lonesome Me | Singing Call Red Bates Silver Sounds 218 | |
| Oh Lonesome Me | Singing Call Glenn Walters Square Tunes 1132 | |
| Oh Lonesome You | Singing Call Harold Hailey Cardinal 22 | |
| Oh Lonesome You | Singing Call Mark Turner Jopat 331 | |
| Oh Look At Me Now | Singing Call Dean Dederman Cheyenne Gold 707 | |
| Oh Me Oh My | Round Helen Maddeaux Grenn 17223 | |
| Oh My My | Singing Call Rick Hampton Fine Tune 200 | |
| Oh No! Hoedown | Patter Mac O'Jima Elite (new) 1016 | |
| Oh Pretty Woman | Singing Call Shaun Werkele August 103 | |
| Oh Pretty Woman | Singing Call Carsten Nielsen New Beat 322 | |
| Oh Sally / Rockin' | Patter (two instrumentals) Kalox 1200 | |
| Oh Susanna | Singing Call Steve Kopman ESP 911 | |
| Oh Susanna | Singing Call Hideyuki Takahashi, Naomi Tomosada Riverboat 540 | |
| Oh Susanna | Singing Call Jack Jackson Sets In Order 130 | |
| Oh Suzanna | Singing Call Matt Worley, Bob Worley Crown 213 | |
| Oh What A Beautiful Love Song | Singing Call Steve Jacques Crown 148 | |
| Oh What A Beautiful Love Song | Singing Call Elmer Sheffield, Jr. ESP 113 | |
| Oh What A Crying Shame | Singing Call Lorne Clayton Gold Wing 153 | |
| Oh What A Love | Singing Call Sally Castracane Silver Sounds 117 | |
| Oh What A Love | Singing Call Jerry Junck Solid Gold 1012 | |
| Oh What A Night | Singing Call Tony Oxendine Royal 259 | |
| Oh Where Can She Be | Singing Call Wayne West MacGregor 2419 | |
| Oh Why Must We Ever Say Goodbye | Singing Call Jerry Story, Larry Letson Royal 304 | |
| Oh Yeah | Patter Chic 4085 | |
| Oh You Beautiful Doll | Singing Call Craig Rowe ESP 715 | |
| Oh You Beautiful Doll | Singing Call Kumi Takahashi Heartland Records 27 | |
| Oh You Beautiful Doll | Singing Call Tony Deleo Nickel 55 | |
| Oh You Beautiful Doll / Star Bright | Round (two-sided) Lorraine & Bill Hurtado, Harry Howe, Lee Rimes Sets In Order 3141 | |
| Oh! Boy / Blue Skirt Waltz | Round (two-sided) Belco 214 | |
| Oh! Bret Nelli / Salty Dog Hoedown comments | Patter (two instrumentals) TNT 312 | |
| Oh! Happy Lucky Me | Singing Call Bailey Campbell Longhorn 163 | |
| Oh! Johnny | Singing Call Sal Fanara Blue Star 1690 | |
| Oh! Johnny | Round Pete & Carol Metzger Merry-Go-Round 86 | |
| Oh! My Oh! | Singing Call Al "Tex" Brownlee Blue Star 1694 | |
| Oh! What A Love | Singing Call Tom Perry Hi Hat 5106 | |
| Oh!! Summer Queen | Patter Yaoko 14616 | |
| Oh, By Jingo | Singing Call Bert Rietz RCA 41-6185 | |
| Oh, Carol | Singing Call Mel Wilkerson, Barry Wonson Omar 67 | |
| Oh, Elizabeth | Singing Call Fred Walker Miracle 103 | |
| Oh, I Hope This Day Is Good | Singing Call Al Horn Prairie 1053 | |
| Oh, I Hope This Day Is Good | Singing Call Al Horn Prairie 1133 | |
| Oh, Johnny / Maverick Waltz | Singing Call (instrumental) + Patter Don Armstrong Lloyd Shaw 3301 | |
| Oh, Lonesome Me | Singing Call Matt Worley Crown 107 | |
| Oh, Lonesome Me | Singing Call Bill Castner Old Timer 8134 | |
| Oh, Lonesome Me | Singing Call Bruce Johnson Windsor 4863 | |
| Oh, Lonesome Me | Patter Yaoko 11704 | |
| Oh, Oh I'm Falling In Love Again | Singing Call Ernie Kinney Hi Hat 5239 | |
| Oh, What A Beautiful Morning | Singing Call Gary Mahnken 4-Bar-B 6135 | |
| Oh, What A Friend | Singing Call Mike Driscoll Cheyenne 2023 | |
| Oh, What A Lonesome Life It's Been | Singing Call Barry Wootten Token 3 | |
| Oh-So Walk In The Barn | Singing Call Harper Smith Kalox 1205 | |
| Ohayo | Patter Silver Sounds 371 | |
| Okeechobee | Singing Call Jim Rice Pioneer 108 | |
| Okeechobee | Singing Call Doug Jernigan Pioneer 6041 | |
| Okey Dokey / Buddy's Hoedown | Patter (two instrumentals) Sunny Hills 137 | |
| Okie From Muskogee | Singing Call Mike Sikorsky 4-Bar-B 6102 | |
| Okie From Muskogee | Singing Call Scott Bennett Acme 123 | |
| Okie From Muskogee | Singing Call John Saunders Kalox 1247 | |
| Okie From Muskogee | Singing Call Gerald McWhirter Roofers 110 | |
| Okie From Muskogee | Singing Call Jerry Story Royal 624 | |
| Okie From Muskogee | Singing Call Buck Hastedt Tarheel 122 | |
| Okies Coming Home | Singing Call Johnnie Wykoff Blue Star 2318 | |
| Oklahoma | Singing Call Robert Ferguson Eagle 3202 | |
| Oklahoma | Singing Call Don Williamson Red Boot 229 | |
| Oklahoma | Singing Call Aaron Wells Riverboat 684 | |
