Aqualung can refer to: *Aqua-lung (often spelled "aqualung" in the United Kingdom) is a type of SCUBA diving equipment, and sometimes used generically to refer to SCUBA breathing apparatus. See also scuba set. *Aqualung, an album by Jethro Tull, as well as a hit song, Aqualung, from that album. *Aqualung, the stage name of Matt Hales, a British musician. *Aqualung, an album by the aforementioned artist. *Aqualung, a concert venue in the Spanish city of Madrid. *For a dinosaur, see its correct spelling Dryptosaurus aquilunguis.