There are four artists with the name Ono:

1. Former project of Czech musicians Roman Putnar and Petra Voldanova. OnO was founded and ended in 2004 after recording two songs.

2. Yoko Ono Lennon (born February 18, 1933) is a Japanese musician and artist best known as the widow of John Lennon of The Beatles. Her early work as a conceptual artist put her on the map in avant-garde circles before marrying the leader of the Beatles. When John left the group, she was widely reviled as the reason behind the split. The couple's output as collaborators included a major campaign for peace and many recordings and films, borrowing from his rock and roll influence and her experimental work. After Lennon's assassination in 1980, Ono's work, as an artist, musician, activist and her public demeanor in the aftermath of the tragedy, largely redeemed her in the minds of many of Lennon's fans, as she continued to make important work through the early decades of the 21st century. Her records have been huge hits on the dance music charts and she is seen as an influential figure in Art Rock , New Wave , Punk and experimental music . Concerts performed in 2010 with the couple's only child, Sean Lennon, as band leader, under the name, We Are Plastic Ono Band, included guests such as Iggy Pop, Eric Clapton and Lady Gaga, earning her the respect which had evaded her in her earlier years as a musician.

3. ONO, a Chicago-based dark-experimental-electronic band mainly active in the 80's with only two records: Machines That Kill People (1982) and Ennui (1986). Both albums were released through the now defunct Thermidor Label.

4. Electronic music project by Greg Watts & Mark Fleckner. Only one track was released on Rephlex Records. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.