The term 'Achtung Baby Producer' refers to the four people who produced the 1991 album of the same name by U2. The first producer is Brian Eno, a British musician, composer, and record producer who has worked with many influential artists. The second producer is Daniel Lanois, a Canadian musician, songwriter, and producer who has also worked with U2 on several albums. The third producer is Steve Lillywhite, an English record producer who has worked with U2 since their first album. The fourth producer is Flood, a British record producer and engineer who has worked with U2 since the late 1980s. Together, these four producers created the iconic Achtung Baby album.