"Nineteen-Year-Old" is a song by the American rock band The Doors, featured on their self-titled debut album released in 1967. The song captures the feelings of youth, freedom, and the complexities of growing up, reflecting the band's signature psychedelic sound. The lyrics convey a sense of nostalgia and longing, typical of Jim Morrison's poetic style. The track showcases the band's innovative use of instrumentation, blending rock with blues influences, which contributed to their lasting impact on the music scene of the 1960s and beyond.