Jamie Barton, Anna Netrebko (pictured) and Bryn Terfel are among those in the running for an International Opera Award.
Following the inaugural event in 2013, the awards ceremony will take place for a second time on 7 April at the Grosvenor House Hotel in London.
American mezzo-soprano Barton, who last year was named BBC Cardiff Singer of the World, is nominated in the Young Singer category.
Netrebko and Tefel are both up for the Reader’s Award, the only category which is decided by a public vote.
Nominations for Best New Production include Welsh National Opera’s Lulu, Bayerishe Staatsoper’s Die Frau ohne Schatten and English National Opera’s Wozzeck.
There are also three separate categories for Anniversary production of Britten, Verdi and Wagner.
The nominations were selected by a jury of industry experts, including chair John Allison, Peter Jonas and Elaine Padmore.
Whilst the awards recognise outstanding achievements in the opera world, the event also raises money to support emerging artists through The Opera Awards Foundation. The foundation provides bursaries to individuals as well as institutions which promote youth involvement in opera.