Katrin Ruus (from 2009 to 2018 Katrin Maimik; from 2018 to 2024 Katrin Tegova; born on March 13, 1982 in Kullamaa) is an Estonian screenwriter and film director.

She graduated from the University of Tartu with a degree in literature and folklore (BA, 2005) and the Baltic Film and Media School with a degree in screenwriting (MA, 2013).

Since 2012, she has been a member of the board of the cultural marketing company Väike Objekt A OÜ.

From 2009 to 2017, she was married to film director Andres Maimik. From 2018 to 2024, she was married to the artist Enn Tegova.