So You Think You Can Dance (American TV series) season 15

So You Think You Can Dance, an American dance competition show, returned for its fifteenth season on Monday, June 4, 2018. The season's judge panel once again features series creator Nigel Lythgoe, as well as the return of ballroom expert Mary Murphy, and Vanessa Hudgens, while Season 4 runner-up Stephen "tWitch" Boss is the new fourth judge during the auditions and the live shows. Cat Deeley continues in her role as host for a fourteenth consecutive season. This is the last season to feature Hudgens as judge.

Auditions
Open auditions for season 15 were held in two cities beginning in March 2018. During the auditions, the judges were joined by special guest judge, Stephen "tWitch" Boss.

Top 20 contestants
Below comprises those who have advanced into the initial top twenty dancers (ten male and ten female dancers), until this year's "twist" which ultimately cut the finalist roster going to the live shows in half.

Elimination chart
Contestants are listed in chronological order of elimination (TBD).

Top 10 Perform, Part 1 (August 6, 2018)

 * Group dance: Top 10: "Dream State" — Son Lux (Contemporary; Choreographer: Travis Wall)
 * Judges: Nigel Lythgoe, Mary Murphy, Vanessa Hudgens, Stephen "tWitch" Boss

Top 10 Perform, Part 2 (August 13, 2018)

 * Group dance: Top 10: "Yummy" – Gwen Stefani ft. Pharrell Williams (Hip-hop; Choreographer: Luther Brown)
 * Judges: Nigel Lythgoe, Mary Murphy, Vanessa Hudgens, Stephen "tWitch" Boss

Top 8 Perform (August 20, 2018)

 * Group dance:
 * Top 8: "Runaway" – Nathan Lanier (Hip-hop; Choreographer: Christopher Scott)
 * Top 4 Girls: "Wanderlust" – Empara Mi (Contemporary; Choreographer: Talia Favia)
 * Top 4 Boys: "Juice" – Yo Gotti (Hip-hop; Choreographer: Luther Brown)
 * Judges: Nigel Lythgoe, Mary Murphy, Vanessa Hudgens, Stephen "tWitch" Boss


 * Solos:

Top 6 Perform (August 27, 2018)

 * Group dance:
 * Top 6: "Spring 1" – Max Richter (Contemporary; Choreographer: Mia Michaels)
 * Top 3 Girls: "Bump" – Trish (Hip-hop; Choreographer: Luther Brown)
 * Top 3 Boys: "Violence Broken" – No Mono (Hip-hop; Choreographer: Christopher Scott)
 * Judges: Nigel Lythgoe, Mary Murphy, Vanessa Hudgens, Stephen "tWitch" Boss

Top 4 Perform (September 3, 2018)

 * Judges: Nigel Lythgoe, Mary Murphy, Vanessa Hudgens, Stephen "tWitch" Boss

Solos:
 * all top 4 contestants were safe from elimination on September 3, winner was declared the following week on September 10, 2018.