Jóhann Jóhannsson
- Birthday: 1969-09-19
- Deathday: 2018-02-09
- Place of birth: Reykjavík, Iceland
- Also know as: Johan Johannsson
Jóhann Gunnar Jóhannsson was an Icelandic composer who wrote music for a wide array of media including theater, dance, television and films. His work is stylized by its blending of traditional orchestration with contemporary electronic elements.
