A Flor da Noite is a Brazilian song-poem by Vinicius de Moraes. Set in Pelourinho, Salvador, it tells of Matilde, a mysterious figure who lives in darkness and sells a metaphorical flower, with the refrain "Olha a flor da noite" urging the listener to notice what lies beyond the visible. The lyrics explore loneliness, madness, and the struggle of human existence, offering multiple readings from hope amid darkness to critique of degradation. While some sources list Toquinho alongside Vinicius de Moraes as co-composer, that attribution on the cited page may be incorrect. The year of release, album, and exact genre are not provided in the source.