Tiina Mälberg (born 16 March 1970) is an Estonian actress.
She graduated from Saku Secondary School in 1988, then enrolled at the Tallinn State Conservatory, studying under instruction of theatre and film director Kalju Komissarov, and graduating in 1992.
Among her graduating classmates were: Merle Palmiste, Kristel Leesmend, Andres Raag, Kaili Närep, Dan Põldroos, Jaanus Rohumaa, Üllar Saaremäe, Ivo Uukkivi, Sten Zupping, and Garmen Tabor.
Since 2011, Mälberg has been a theatre lecturer at the Viljandi Culture Academy of the University of Tartu.
Besides theatrical roles, she has also worked as a radio, television, and film actress.