"Some of These Days" is a popular song, written and composed by Shelton Brooks, published in 1910, and associated with the performer Sophie Tucker.

"Some of These Days" has been recorded by many other artists, including Billy "Uke" Carpenter, Ethel Waters, Louis Armstrong, Coco Briaval, Elkie Brooks, Cab Calloway, Bing Crosby, Bobby Darin, Ella Fitzgerald, Diahann Carroll, Brenda Lee, Danny Aiello, Judy Garland, Matt Forbes, The Hot Sardines, Susan Maughan, The McGuire Sisters, the Original Dixieland Jass Band, Sue Raney, Serena Ryder, Sidney Bechet,[3] Leon Redbone, Coon-Sanders Nighthawks, and Erica Lewis with the band Tuba Skinny.

"Some of These Days" made the first of many movie soundtrack appearances in Lights of New York (1928), the first "all talking" motion picture, being one of several songs played by the house band of the nightclub where the film is set.

Other films to feature the song include Scarface and Three on a Match (both 1932), both featuring actress Ann Dvorak dancing to the song: in Scarface the song is played in a nightclub by Gus Arnheim's band while Cesca Camonte (Dvorak) dances and in Three on a Match, Vivian Revere Kirkwood (Dvorak) dances while Jerry Carter (Harry Seymour) plays "Some of These Days" on a piano.

"Some of These Days" was also featured in the 1939 release Only Angels Have Wings in which Bonnie Lee (Jean Arthur) plays the song on the piano in a cantina.