The semifinal round of the NATS 2018 National Student Auditions (NSA) was held on Friday, June 22, at the University of Nevada, Las Vegas College of Music. This year's competition is part of the 55th NATS National Conference.

The final round takes place on Sunday, June 24 with more than $35,000 in prizes being awarded. Winners will be announced during the conference events following the competition.

The NSA finalists are listed below, by category, including their region:

Category 1 – High School Music Theater Women

• Emma Broyles
• Phoebe Jacobs
• Abigail Pauley
• Katherine Roeder

Category 2 – High School Music Theater Men

• Toshaan Arora
• Nick DiPuma
• Parker Waters

Category 3 – High School Women

• Julia Holoman
• Madeleine Keane
• Ava Kuntz

Category 4 – High School Men

• David Bone
• Nathan Janzen
• Parker Waters

Category 5 – Lower College Music Theater Women

• Sydney Byte
• Elizabeth Drake
• Victoria Hill

Category 6 – Lower College Music Theater Men

• Anthony Blatter
• Ben Boutell
• Matthew Carter

Category 7 – Lower College/Ind. Studio Women

• Bonnie Blackwell
• Lucy Evans
• Emma Robertson

Category 8 – Lower College/Ind. Studio Men

• Tyrese Byrd
• Shayne Piles
• Ben Strong

Category 9 – Upper College Music Theater Women

• Hannah Bach
• Desiree Borges
• Kourtney Ellis

Category 10 – Upper College Music Theater Men

• Corbin Eakes
• Luke Holt
• Jairus McClanahan
• Jalen Smith

Category 11 – Upper College/Ind. Studio Women

• Savannah Hirst
• Susannah Stewart
• Aiyana Williams

Category 12 – Upper College/Ind. Studio Men

• Cardarious Bonner
• John Mburu
• Luke Merrick
• Bergsvein W. Toverud

Category 13 – Graduate/Advanced Women

• Clarisse Colao
• Crystal Golden
• Yvette Rodriguez

Category 14 – Graduate/Advanced Men

• Gerald Nicholas
• Austin Sanders
• Zaikuan Song

Hall Johnson Spiritual

• Kayla Linquist
• Tres McMichael
• Jalen Smith