Biljana "Bilja" Krstić (Serbian Cyrillic: Биљана Биља Крстић, Serbian pronunciation: [bǐʎana bǐːʎa kř̩ːstitɕ]; born 9 November 1955) is a Serbian and Yugoslav singer and songwriter.

Starting her musical career as a teenager, Krstić gained nationwide popularity as the member of the rock band Suncokret. She later moved to the band Rani Mraz, with which she also achieved large commercial and critical success. She started her solo career in 1983, releasing three mostly pop rock-oriented albums and one children's music album to moderate success. In the late 1990s she started performing ethnic music, to large critical acclaim and mainstream success in Serbia and abroad. With her backing band Bistrik Orchestra, Krstić has recorded six studio albums with covers of traditional songs from the Balkans and performed on world music festivals across the world. She has composed music for film, television and theatre.