- For No One is a Beatles song from the 1966 album Revolver, written by Paul McCartney and credited to Lennon-McCartney. 
- It is a baroque pop ballad about the end of a romance, told from the perspective of a man who sees the woman he loves wake up, make up, and go out, while he stays behind, with the line a love that should have lasted years underscoring the ache. 
- The track is distinguished by a French horn solo played by Alan Civil, used as an obbligato in the final verse. 
- It was recorded at EMI Studios in London on May 9, 16 and 19, 1966, with McCartney on piano, clavichord, and bass, Ringo Starr on drums, and produced by George Martin; Lennon and Harrison did not contribute to the recording. 
- The song runs about two minutes and is noted as one of McCartney’s most mature Beatles moments, reportedly begun during a skiing holiday in Switzerland and originally titled Why Did It Die?