Liina Vahtrik (née Liina Sallo; born August 8, 1972 in Tallinn) is an Estonian actress.

Liina Vahtrik was born in Tallinn to actress and singer Helgi Sallo and opera singer Uno Heinapuu (:et). She attended schools in Tallinn, graduating from Tallinn Secondary School no. 47, before enrolling at the drama department of the Estonian Academy of Music and Theatre in 1994, graduating in 1998.

After graduation from the Estonian Academy of Music and Theatre, in 1998 Vahtrik began an engagement as an actress at the Von Krahl Theatre in Tallinn. She left the Von Krahl Theatre in 2008, became a freelance actress and has appeared in a number of films and television series.

Liina Vahtrik was married to Andre Vahtrik, who died in 2001. Afterwards, she had a long-term relationship with actor Jan Uuspõld.