Acqua azzurra, acqua chiara

"Acqua azzurra, acqua chiara" (lit. 'Blue water, clear water') is a 1969 song composed by Lucio Battisti (music) and Mogol (lyrics) and performed by Lucio Battisti.

The song premiered in the Renzo Arbore's television show Speciale per voi, where Arbore convinced Battisti and Mogol to prefer the song as A-side of the single instead of "Dieci ragazze". The song ranked third in the 1969 Cantagiro, behind Massimo Ranieri's "Rose Rosse" and Camaleonti's "Viso d'angelo", and it eventually won the Festivalbar.

Artists who covered the song include Mina, Raffaella Carrà, Marcella Bella, Formula 3, Andrea Mingardi.