O Pato, meaning The Duck, is a Brazilian tune written by Jaime Silva and Neuza Teixeira. It originates from the 1948 repertoire of the group Os Garotos da Lua, though it was not recorded at that time. The first release was by João Gilberto in May 1960, and the song is linked to the early Bossa Nova movement. There are many versions and two adaptations (128 versions in total), and it was published by FERMATA INTERNATIONAL MELODIES INC GEMA. It reportedly reached 34th in 1960 on charts. The tune is typically categorized as Bossa Nova or Brazilian pop.