Romance of the Rio Grande (also: En kärleksnatt vid Rio Grande) is a 1929 American sound (All-Talking) pre-Code Western musical film directed by Alfred Santell and starring Warner Baxter, Mona Maris, Mary Duncan, and Antonio Moreno. Based upon the novel Conquistador by Katharine Fullerton Gerould, it was produced and distributed by the Fox Film Corporation in both a Movietone talking version and also a silent version.