Young Dr. Kildare is a 1938 American drama film directed by Harold S. Bucquet and starring Lew Ayres as Dr. James Kildare, an idealistic, freshly graduated medical intern, who benefits greatly from the wise counsel of his experienced mentor, Dr. Leonard Gillespie (played by Lionel Barrymore). The film was based on a story and characters created by author Frederick Schiller Faust, writing as Max Brand.

It is the second of a total of ten films featuring the "Dr. Kildare" character, but the first made by MGM, the first starring Ayres, and the first film appearance of the Dr. Gillespie character. The first Kildare film, Internes Can't Take Money (1937), was made by Paramount, featured Joel McCrea in the title role, and was based on an earlier Faust character and story that did not include the crusty Gillespie. After Internes Can't Take Money failed to meet Paramount's commercial expectations, MGM acquired the rights and worked with Faust to revise the character and storyline for greater viewer appeal, including the addition of Gillespie.

Young Doctor Kildare introduced the regulars working at Blair, including hospital administrator Dr. Carew (Walter Kingsford), nurses Molly Byrd (Alma Kruger) and Nosey Parker (Nell Craig), orderly Conover (George H. Reed), ambulance attendant Joe Wayman (Nat Pendleton), switchboard operator Sally (Marie Blake), and Mike Ryan (Frank Orth), proprietor of Sullivan's Hospital Cafe.

Following the success of Young Dr. Kildare, MGM went on to make a total of nine Kildare films, plus an additional six films centering on Gillespie after Kildare had been phased out.