- Nowhere Man by The Beatles prod. by George Martin
- Ob-La-Di, Ob-La-Da by The Beatles prod. by George Martin
- Ob-La-Di, Ob-La-Da (Take 5) by The Beatles prod. by George Martin
- Octopus's Garden by The Beatles prod. by George Martin
- Octopus's Garden (LOVE Version) by The Beatles prod. by George Martin & Giles Martin
- Oh! Darling by The Beatles prod. by George Martin
- Oh My Love by John Lennon prod. by John Lennon, Phil Spector & Yoko Ono
- Old Brown Shoe by The Beatles prod. by George Martin
- One After 909 by The Beatles prod. by Phil Spector
- Only a Northern Song by The Beatles prod. by George Martin
- Ooh Baby (You Know That I Love You)
- P2 Vatican Blues (Last Saturday Night) prod. by Dhani Harrison & Jeff Lynne
- Pac-Man by "Weird Al" Yankovic
- Paperback Writer by The Beatles prod. by George Martin
- Penny Lane by The Beatles prod. by George Martin
- Photograph by Ringo Starr prod. by Richard Perry
- Piggies by The Beatles prod. by Chris Thomas & George Martin
- Piggies by Theo Bikel
- Piggies (Esher Demo) by The Beatles prod. by The Beatles
- Pisces Fish prod. by Dhani Harrison & Jeff Lynne