Serenade in D major may refer to: Serenade in D major, P. 87 (Michael Haydn) Serenade No. 4 (Mozart) Serenade No. 5 (Mozart) Serenade No. 6 (Mozart), "Serenata Notturna" Serenade No. 7 (Mozart), "Haffner Serenade" Serenade No. 9 (Mozart), "Posthorn Serenade" Serenade in D major, converted into Symphony No. 35 (Mozart), "Haffner Symphony" Serenade for Violin, Viola and Cello (Beethoven) Serenade for flute, violin and viola (Beethoven) Serenade No. 1 (Brahms) No. 1 of the Two Serenades, Op. 69 (Sibelius)