Arena Sofia is a multi-purpose indoor arena located in Sofia, Bulgaria. Opened in July 2011, it has a seating capacity of 12,373. It was formerly called Arena Armeets after the Bulgarian insurance company Armeets purchased the naming rights, until the sponsorship was terminated in October 2022.

The Junior Eurovision Song Contest 2015 was the thirteenth edition of the annual Junior Eurovision Song Contest, and took place, for the first time, in Bulgaria. The Bulgarian national broadcaster BNT was the host broadcaster for the event. The final took place on 21 November 2015 and was held at the Arena Armeec in Sofia. Poli Genova, a Bulgarian singer and former representative of Bulgaria in the Eurovision Song Contest 2011, hosted the show. A total of seventeen countries participated, with Australia and Ireland making their debuts. Albania and Macedonia returned after being absent since the 2012 and 2013 contests, respectively. Croatia and Cyprus withdrew after returning in the 2014 edition, while Sweden withdrew for the first time since 2008.