| Song Title | Source | Composer(s) |
|---|
| Office Politics | Corkscrews
| Siegel |
| Office Reverie | Adding Machine
| Schmidt |
| Office Romance | Madison Avenue
| Cherpakov |
| Ogre Battle | We Will Rock You
| various |
| Oh Baby, Gee Baby | Ballet Ballads
| Moross |
| Oh Benjamin Harrison | One And Only Genuine Original Family Band, The
| Sherman, Sherman |
| Oh Boy | Buddy
| Holly |
| Oh Brother | Greenwich Village
| Brown |
| Oh Buddy, I'm in Love | Radio Times
| Gay |
| Oh by Jiminy | Girl Friend, The
| Rodgers |
| Oh Daddy | Life, The
| Coleman |
| Oh Daddy Dear | Peace
| Carmines |
| Oh Fish in the Sea | Isabel's a Jezebel
| MacDermot |
| Oh Gawd, Men ... Beasts! | Andy Capp
| Price |
| Oh Gee! Oh Joy! | Look For the Silver Lining
| various |
| Oh Gee, Be Sweet To Me, Kid | I Wonder Who's Kissing Her Now
| Howard |
| Oh God | Peace
| Carmines |
| Oh God I'm Thirty | Bistro Car On The C N R, A
| Rose |
| Oh Great God of Power | Hair
| MacDermot |
| Oh Happy We (Reprise) | Candide
| Bernstein |
| Oh Heart of Love | Johnny Johnson
| Weill |
| Oh How Awful! Oh How Sad! | Lizzie Borden
| McGovern |
| Oh How I Hate To Get Up in the Morning | Alexander's Ragtime Band
| Berlin |
| Oh I'm Agoin' Out To The Blackfish Banks... | Porgy and Bess
| Gershwin |
| Oh I'm Agoin' Out To The Blackfish Banks... (Reprise) | Porgy and Bess
| Gershwin |
| Oh Joy, Oh Rapture | Pinafore!
| Sullivan |
| Oh Lawd, I'm On My Way | Porgy and Bess
| Gershwin |
| Oh Lord, Protect Us | Drake's Dream
| Riley, Riley |
| Oh Me! Oh My! Oh You! | No, No, Nanette
| Youmans |
| Oh Me, Oh Mi-Ami | Moon over Miami
| Rainger |
| Oh Mistress Mine | Hey, Love
| Rodgers |
| Oh Moïse | Dix Commandements, Les
| Obispo |
| Oh Mom, Oh Dad | Ballad Of Little Mikey, The
| Savage |
| Oh Mrs. Hitler | Only the Brave
| Brind |
| Oh Mummy Darling | Isabel's a Jezebel
| MacDermot |
| Oh My, What a Beautiful City | Metropolis
| Brooks |
| Oh Paris | Paris
| English, Mackay |
| Oh Pretty Woman | Only the Lonely
| various |
| Oh So Bad | Slice Of Saturday Night, A
| Heather Brothers |
| Oh That Mitzi | One Hour With You
| Whiting, Straus |
| Oh the First Time | Cindy-Ella
| Brahms, Sherrin |
| Oh The Train Is At The Station... | Porgy and Bess
| Gershwin |
| Oh Them Dudes | Let's Dance
| Loesser |
| Oh This Is Such a Lovely War | Strike Up the Band
| Gershwin |
| Oh Those Thirties | Fade Out, Fade In
| Styne |
| Oh Wann Kommst Du? | Sekretärinnen
| various |
| Oh What a Circus | Evita
| Lloyd Webber |
| Oh What a Circus | Musicals From the Heart
| various |
| Oh What a Difference | I Love You Because
| Cunningham, Salzman |
| Oh What A Family | What a Crazy World
| Klein |
