- Oh Very Young - Cat Stevens
- Oh Well - Fleetwood Mac
- Oh Well, Oh Well - Mayday Parade
- Oh Well, Okay - Elliott Smith
- Oh What A Nite - The Dells
- Oh What A World - Rufus Wainwright
- Oh Woman Oh Man - London Grammar
- Oh Wot A Big One! - Jonathan Hodge
- Oh Yeah - Aerosmith
- Oh Yeah - The Subways
- Oh Yeah! - Green Day
- Oh! Carol - Neil Sedaka
- Oh! Darling - The Beatles
- Oh! Gravity. - Switchfoot
- Oh! How I Hate To Get Up In The Morning - Irving Berlin
- Oh! Mr Porter - Marie Lloyd
- Oh! Susanna - Stephen C. Foster
- Oh! That Gorgonzola Cheese - Harry Champion
- Oh! The Saviour - Temples
- Oh! Whiskey - Jimi Goodwin
- Oh! You Pretty Things - David Bowie
- Oh, Cecilia - Burden Brothers
- Oh, Dem Golden Slippers! - James Bland
- Oh, Father - Madonna
- Oh, George - Foo Fighters
- Oh, It Is Love - Hellogoodbye
- Oh, Oh, Oh, Oh, Seven - Dora Bryan
- Oh, Sister - Bob Dylan
- Oh, Sunday Night - Carrie Underwood
- Oh, The Guilt - Nirvana
- Oh, What a Beautiful Mornin' - Cast of Oklahoma!
- Oh, What A Life - American Authors
- Oh, What A World - Kacey Musgraves
- Ohio - Crosby, Stills, Nash & Young
- Ohio - Lambchop
- Ohio - Patty Griffin
- Ohio - Andrew McMahon in the Wilderness
- Ohio (Come Back to Texas) - Bowling for Soup
- Ohio Is For Lovers - Hawthorne Heights
- Ohms - Deftones
- Oi Oi Oi - Cockney Rejects
- Oi Shot A Rabbit Up A Tree - The Singing Postman
- Oil - Gorillaz
- Oil Tanker Train - Merle Haggard
- Oildale (Leave Me Alone) - Korn
- OJ - Jeezy
- Ojai - Ray LaMontagne
- Ojai - Lissie
- Ojitos Lindos - Bad Bunny
- Ojos Asi - Shakira
- Ojos Tristes - Selena Gomez and Benny Blanco
- OK - Beastie Boys
- OK (Anxiety Anthem) - Mabel
- OK Not To Be OK - Demi Lovato
- Ok Ok - Kanye West
- OK, It's Alright With Me - Eric Hutchinson
- Okay - LANY
- Okay - JT
- Okay Okay - Fat Joe
- Okay to Smile - T-Pain
- Okie From Muskogee - Merle Haggard
- Oklahoma - Keb' Mo'
- Oklahoma Sky - Miranda Lambert
- Oklahoma Smoke Show - Zach Bryan
- Oklahoma! - Cast of Oklahoma!
- Okra - Tyler, the Creator
- Ol' '55 - Eagles
- Ol' Church Hymn - Darius Rucker
- Ol' Man River - Paul Robeson
- Ol' Red - Blake Shelton
- Olana - Marc Cohn
- Old - Henry Priestman
- Old - Paul Simon
- Old & Crazy - Bruno Mars
- Old Admirals - Al Stewart
- Old Alabama - Brad Paisley
- Old and Wise - The Alan Parsons Project
- Old Before I Die - Robbie Williams
- Old Blood - Cancer Bats
- Old Blue Car - Peter Case
- Old Boots, New Dirt - Jason Aldean
- Old Boy At The Pictures - Cockney Rejects
- Old Brown Shoe - The Beatles
- Old Cape Cod - Patti Page
- Old Castles - Paul Weller
- Old Church Choir - Zach Williams
- Old Compton Street Blues - Al Stewart
- Old Days - Lil Durk
- Old Devil Moon - Cast of Finian's Rainbow
- Old Dirt Hill - Dave Matthews Band
- Old Dreams - Maia Sharp
- Old Enough - Nickelback
- Old Faces - Laura Doggett
- Old Farmer Buck - Traditional
- Old Five and Dimers Like Me - Waylon Jennings
- Old Flames (Can't Hold a Candle to You) - Dolly Parton
- Old Flowers - Courtney Marie Andrews
- Old Friends - Simon & Garfunkel
- Old Friends - Ben Rector
- Old Habits - Justin Moore
