There are at least 10 groups with the name H2O (including H₂O):
1. A hardcore band from the United States
2. A pop rock band from Latvia
3. A hip hop duo from South Africa
4. An alias of Oliver Strumm
5. A rock band from Scotland
6. A hip-hop/dance group from Montenegro
7. A techno act from Norway
8. A progressive rock band from Italy
9. A Japanese folk/pop duo.
10. A South Korean band.
1) H2O is an American hardcore/hardcore punk band from New York City that was formed in 1995 by Toby Morse .
