| Year | Title | Director | Studio | Notes |
| 1960 | I Passed for White | Fred M. Wilcox | Allied Artists Pictures | Credited as Johnny Williams |
Because They're Young | Paul Wendkos | Jerry Bresler Productions Columbia Pictures |
| 1961 | The Secret Ways | Phil Karlson Richard Widmark | Heath Productions Universal Pictures |
| 1962 | Bachelor Flat | Frank Tashlin Budd Grossman | 20th Century Fox |
| 1963 | Diamond Head | Guy Green | Jerry Bresler Productions Columbia Pictures |
Gidget Goes to Rome | Paul Wendkos | Columbia Pictures |
| 1964 | Nightmare in Chicago | Robert Altman | Roncom Films NBC | Television film |
The Killers | Don Siegel | Revue Studios Universal Pictures | Credited as Johnny Williams Adapted material by Henry Mancini |
Redcap | — | ABC ITV | Credited as Johnny Williams Television series; Episode "Nightwatch" |
| 1965 | Lost in Space | Anton M. Leader Sobey Martin Paul Stanley | Irwin Allen Productions Jodi Productions Inc. Van Bernard Productions Inc. 20th Century Fox Television CBS | Credited as Johnny Williams Television series; Episodes "The Reluctant Stowaway," "Island in the Sky", "The Hungry Sea" and "My Friend, Mr. Nobody". Williams composed two different opening themes, one used only for the first season; the second was also adapted by other composers for later film and TV remakes of the series. |
None but the Brave | Frank Sinatra | Tokyo Eiga Toho Artanis Productions Warner Bros. | Credited as Johnny Williams |
John Goldfarb, Please Come Home! | J. Lee Thompson | Parker–Orchard Productions 20th Century Fox | Credited as Johnny Williams |
| 1966 | The Rare Breed | Andrew V. McLaglen | Universal Pictures |
How to Steal a Million | William Wyler | World Wide Productions 20th Century Fox |
The Plainsman | David Lowell Rich | Universal Pictures |
Not with My Wife, You Don't! | Norman Panama | Fernwood Productions Reynard Productions Warner Bros. |
Penelope | Arthur Hiller | Euterpe Metro-Goldwyn-Mayer |
Jericho | Barry Shear | Arena Productions MGM Television CBS | Credited as Johnny Williams Television series; Episode "The Ghostbreaker" |
Time Tunnel | Irwin Allen | Irwin Allen Productions Kent Productions Inc. 20th Century Fox Television ABC | Credited as Johnny Williams Television series; Episode "Rendezvous With Yesterday" |
| 1967 | Valley of the Dolls | Mark Robson | 20th Century Fox | Credited as Johnny Williams Songs written by André and Dory Previn Nominated—Academy Award for Best Scoring of Music — Adaptation or Treatment |
A Guide for the Married Man | Gene Kelly | Credited as Johnny Williams Composed title song (written by Leslie Bricusse, performed by The Turtles) |
Fitzwilly | Delbert Mann | The Mirisch Corporation United Artists | Credited as Johnny Williams |
| 1968 | Sergeant Ryker | Buzz Kulik | Universal Pictures |
Land of the Giants | Irwin Allen | Irwin Allen Productions Kent Productions Inc. 20th Century Fox Television ABC | Credited as Johnny Williams Television series; Episode "The Crash". Replaced a score by Alexander Courage |
Heidi | Delbert Mann | NBC | Television film |
| 1969 | Daddy's Gone A-Hunting | Mark Robson | National General Pictures |
Goodbye, Mr. Chips | Herbert Ross | APJAC Productions Metro-Goldwyn-Mayer (US) David Ortan (UK) | Nominated—Academy Award for Best Scoring of a Musical Picture — Original or Adaptation (shared with Leslie Bricusse) |
The Reivers | Mark Rydell | Cinema Center Films Duo Films Solar Productions National General Pictures | Nominated—Academy Award for Best Original Score — For a Motion Picture (Not a Musical) |