There are at least 2 acts that use the name Oniris:

1-) Oniris was a progressive band from France who had released the album L'Homme-Voilier ‎ in 1979 in the twilight of Progressive Rock and one year later had the same album released again via Barclay in Japan.


2) - Xavier Januario, aka Oniris, is a Electronic musian from France.
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Artist biography from last.fm