Lilian Tzivian is an epidemiologist, currently working as an Associate Professor in the Faculty of Medicine at University of Latvia.

Her research interests were related to effects of air pollution and traffic noise on human health.

Tzivian completed her master's degree in Human and Animal physiology at the University of Latvia and PhD in Social epidemiology from Ben Gurion University of Negev, Israel. She performed her postdoctoral research on Environmental epidemiology at the Heinrich Heine University of Dusseldorf, Germany.