"What in the World" is a song by David Bowie released on his 1977 album Low, later making appearances as repertoire in the 1978 world tour as well as other major tours.

"What in the World" showcases some of Bowie's Berlin-era songwriting and production techniques. This song, like others on Low, shows Bowie's experiments with disjointed, non-linear lyrics with seemingly random sentences and free-associative phrases.

The song makes heavy use of synthesizer and recording studio techniques, heavily influenced by the work of Brian Eno, who collaborated with the album. A "blip"-like sound comparable to the sounds later made by Pac-Man and the Nintendo Entertainment System pulses throughout the song, which, coupled with extremely rhythmic guitar solos, creates a frantic pace. The song also makes use of the Harmonizer which Tony Visconti brought to the studio which was used to Dennis Davis' drumming. The song also features Iggy Pop on backing vocals. Pop's album The Idiot was recorded back-to-back with Low at the same facility, was produced by Bowie, and featured many of the same musicians.

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