Pipi-Liis Siemann (born 17 November 1975) is an Estonian politician who is a member of the XV Riigikogu. She also served as the Mayor of Türi Parish between 2012 and 2021.
Pipi-Liis Siemann was born in the village of Retla in Järva County. She attended Rakvere Pedagogical School, graduating in 1995. In 2003, she graduated from Lääne-Viru College with a degree in social work. In 2007, she graduated from Tallinn University of Technology. She received an MA in educational leadership from Tallinn University in 2021. She has worked as a nursery school teacher, social worker and as a practical nurse.
Siemann previously belonged to the Isamaa political party from February 2008 until the end of 2021. In May 2022, she became a member of the Reform Party.
Siemann was elected to the Riigikogu in the parliamentary election for the Reform Party in electoral district no. 8.
SIemann is married and the mother of three children.