M-N
| Title | Director | Cast | Genre | Notes |
|---|---|---|---|---|
| The Man in the Iron Mask | James Whale | Louis Hayward, Joan Bennett, Warren William | Adventure | United Artists |
| The Man Who Dared | Crane Wilbur | Jane Bryan, Charley Grapewin | Crime | Warner Bros. |
| Maisie | Edwin L. Marin | Robert Young, Ann Sothern, Ruth Hussey | Comedy | MGM, first of 10 "Maisie" films |
| Man of Conquest | George Nichols Jr. | Richard Dix, Gail Patrick, Joan Fontaine | Biopic | Republic Pictures |
| Mexicali Rose | George Sherman | Gene Autry, Smiley Burnette | Western | Republic Pictures |
| Midnight | Mitchell Leisen | Claudette Colbert, Don Ameche, John Barrymore | Romantic comedy | Paramount |
| Miracles for Sale | Tod Browning | Robert Young, Florence Rice | Mystery | MGM |
| Missing Daughters | Charles C. Coleman | Richard Arlen, Rochelle Hudson and Marian Marsh | Crime drama | Columbia Pictures |
| Mr. Smith Goes to Washington | Frank Capra | James Stewart, Jean Arthur, Claude Rains | Drama | Columbia Pictures |
| Mr. Wong in Chinatown | William Nigh | Boris Karloff, Marjorie Reynolds, Grant Withers | Mystery | Monogram |
| The Mystery of Mr. Wong | William Nigh | Boris Karloff, Grant Withers, Dorothy Tree | Mystery | Monogram |
| Nancy Drew and the Hidden Staircase | William Clemens | Bonita Granville, John Litel | Mystery | Warner Bros. |
| Nancy Drew... Reporter | William Clemens | Bonita Granville, John Litel, Frankie Thomas | Mystery | Warner Bros. |
| Nancy Drew, Trouble Shooter | William Clemens | Bonita Granville, Frankie Thomas, John Litel | Mystery | |
| Never Say Die | Elliot Nugent | Martha Raye, Bob Hope | Romantic comedy | Preston Sturges, Paramount Pictures |
| Nick Carter, Master Detective | Jacques Tourneur | Walter Pidgeon, Rita Johnson, Henry Hull | Crime | MGM |
| Ninotchka | Ernst Lubitsch | Greta Garbo, Melvyn Douglas, Ina Claire, Bela Lugosi | Romantic comedy | MGM |
Read more about this topic: List Of American Films Of 1939