Ana Caterina Morariu (born 20 November 1980) is a Romanian-born Italian actress.
Born in Cluj-Napoca, the daughter of the classic ballet dancer Marineta Rodica Rotaru, at young age Morariu moved to Italy with her mother, living between Tuscany and Calabria. She graduated at the Centro Sperimentale di Cinematografia in Rome in 2002, and the same year she started her career on stage.
She became first known in 2004 thanks to a series of important roles in television series and TV movies. She next appeared as Marie Cressay(fr) in the 2005 French miniseries Les Rois maudits. Active in films, television and on stage, in 2006 Morariu was nominated for David di Donatello in the "best actress" category for her performance in Carlo Verdone's Il mio miglior nemico.