Lauli Koppelmaa (until 2021 Lauli Otsar; born January 20, 1992 in Võru) is an Estonian actress.

She graduated from the XXVII flight of the Estonian Academy of Music and Theater School of Performing Arts in 2016. After graduating from the performing arts school in 2016, she worked as an actress at the Kuressaare Theater and the Kelm Theater in Tallinn. Since the fall of 2021, she has been an actress at the Ugala Theater.

In 2017, she played Karin in the TV3 drama series "Merivälja".