O-S
| Title | Director | Cast | Genre | Notes |
|---|---|---|---|---|
| Of Human Bondage | Edmund Goulding | Paul Henreid, Eleanor Parker, Janis Paige | Drama | Warner Bros. |
| Outlaws of the Plains | Sam Newfield | Buster Crabbe, Al St. John, Bud Osborne | Western | PRC |
| The Phantom Rider | Spencer Gordon Bennet | Robert Kent | Serial | Republic Pictures |
| The Postman Always Rings Twice | Tay Garnett | Lana Turner, John Garfield | Film noir | MGM |
| Quentin Quail | Chuck Jones | Animation | Warner Bros. | |
| Racketeer Rabbit | Friz Freleng | Bugs Bunny | Animation | Warner Bros. |
| The Razor's Edge | Edmund Goulding | Tyrone Power, Gene Tierney | Drama | 20th Century Fox |
| Rhapsody Rabbit | I. Freleng | Bugs Bunny | Animation | Warner Bros. |
| Rhythm and Weep | Jules White | Three Stooges | Short subject | Columbia Pictures |
| Road to Utopia | Hal Walker | Bing Crosby, Bob Hope, Dorothy Lamour | Musical comedy | Paramount Pictures |
| The Scarlet Horseman | Lewis D. Collins, Ray Taylor | Serial | Universal Pictures | |
| The Secret Heart | Robert Z. Leonard | Claudette Colbert, Walter Pidgeon | Drama | MGM |
| Sentimental Journey | Walter Lang | Maureen O'Hara, John Payne | Drama | 20th Century Fox |
| She-Wolf of London | Jean Yarbrough | June Lockhart, Don Porter | Horror | Universal |
| Shock | Alfred L. Werker | Vincent Price, Lynn Bari, Frank Latimore | Film noir | 20th Century Fox |
| Sister Kenny | Dudley Nichols, Jack Gage | Rosalind Russell, Alexander Knox | Biopic | RKO Pictures |
| So Dark the Night | Joseph H. Lewis | Steven Geray | Film noir | |
| Solid Serenade | Hanna Barbera | Tom and Jerry | Animation | MGM |
| Somewhere in the Night | Joseph L. Mankiewicz | John Hodiak, Lloyd Nolan | Film noir | 20th Century Fox |
| Song of the South | Wilfred Jackson | Animated film | RKO Pictures | |
| Special Delivery | Propaganda | Air Force | ||
| The Spiral Staircase | Dore Schary | Dorothy McGuire, George Brent | Thriller | RKO Pictures |
| Springtime for Thomas | Hanna Barbera | Tom and Jerry | Animation | MGM |
| A Stolen Life | Curtis Bernhardt | Bette Davis, Glenn Ford | Drama | Warner Bros. |
| The Strange Love of Martha Ivers | Lewis Milestone | Barbara Stanwyck, Van Heflin, Lizabeth Scott | Film noir | Paramount |
| The Stranger | Orson Welles | Edward G. Robinson, Loretta Young, Orson Welles | Film noir | RKO |
| Suspense | Frank Tuttle | Barry Sullivan, Belita, Albert Dekker | Film noir | Monogram |
| Swing Parade of 1946 | Phil Karlson | Three Stooges, Gale Storm | Musical Comedy | Monogram |
Read more about this topic: List Of American Films Of 1946