| Year | Title | Artist | Role |
| 1966 | Fifth Dimension | The Byrds | Organ on "5D (Fifth Dimension)" |
| 1966 | Tim Buckley | Tim Buckley | Session musician |
| 1967 | Smiley Smile | The Beach Boys | Writing |
| 1967 | Triangle | The Beau Brummels | Harpsichord, keyboards |
| 1968 | Randy Newman | Randy Newman | Producer |
| 1970 | Sit Down Young Stranger | Gordon Lightfoot | Harmonium on "Cobwebs and Dust" |
| 1970 | Greatest Hits | Phil Ochs | Producer, keyboards |
| 1970 | Ry Cooder (album) | Ry Cooder | Producer, piano |
| 1971 | Surf's Up | The Beach Boys | Writing, vocals |
| 1972 | Into the Purple Valley | Ry Cooder | Keyboards |
| 1973 | Holland | The Beach Boys | Writing |
| 1975 | Duit on Mon Dei | Harry Nilsson | Piano, synthesizer |
| 1985 | Lost in the Stars: The Music of Kurt Weill | Hal Willner | Featured performer |
| 1987 | Famous Blue Raincoat | Jennifer Warnes | Synthesizer, Accordion, Arranger |
| 1995 | Orange Crate Art | Brian Wilson & Van Dyke Parks | Primary artist |
| 1995 | Ain't Had Enough Fun | Little Feat | Accordion |
| 2000 | O Brother, Where Art Thou? | Various | The instrumental Big Rock Candy Mountain |
| 2002 | Diorama | Silverchair | Orchestral arrangements |
| 2004 | Smile | Brian Wilson | Writing |
| 2004 | Enjoy Every Sandwich: Songs of Warren Zevon | Various | Featured performer |
| 2004 | While the Music Lasts | Jesse Harris | Orchestral arrangements, featured performer |
| 2006 | Ys | Joanna Newsom | Accordion, orchestral arrangements, producer |
| 2006 | Rogue's Gallery: Pirate Ballads, Sea Songs, and Chanteys | Various | Featured performer |
| 2006 | The Harry Smith Project: Anthology of American Folk Music Revisited | Hal Willner | Featured performer |
| 2007 | Young Modern | Silverchair | Orchestral arrangements |
| 2007 | Tribute to Haruomi Hosono | Various | Featured performer |
| 2008 | An Invitation | Inara George with Van Dyke Parks | Featured performer |
| 2008 | Replica Sun Machine | The Shortwave Set | Orchestral arrangements |
| 2009 | Echo | Mari Iijima | Session musician |
| 2009 | Cool Man Cool | Grant Geissman | Session musician |
| 2009 | Walk With You | Ringo Starr | co-writer |
| 2013 | Clockwork | Sleeping at Last | Orchestral Arrangements |
| 2019 | ¡Spangled! | Gaby Moreno & Van Dyke Parks | Songwriter, composer, and arranger |
| 2021 | Old Summer Reckoning | The Blasting Company & Van Dyke Parks | Songwriter, producer, and arranger |
| 2022 | "Emergency Calls Only" | FutureNever | as featured artist |