Agnieszka Sienkiewicz-Gauer (born July 19, 1984 in Mragowo, Warminsko-Mazurskie, Poland)

She is a graduate of the Post-Secondary Theater School at Stefan Jaracz Theater in Olsztyn.

She is associated with the Kwadrat Theater in Warsaw. She also collaborate with the Wojciech Boguslawski Theather in Kalisz.

She made her debut on the small screen in 2007, playing minor roles in the series Twarza w twarz (2007) or Klan (1997). She played Magda Jaroszek, the leading character in the series Agentki (2008), and played the role of Katarzyna Mularczyk in the series M jak milosc (2000). Between 2012-2021, she played the role of Dorota Grabowska in Przyjaciólki (2012). In 2014, together with Stefano Terrazzino, she won the second edition of Dancing with the Stars. Taniec z gwiazdami (2014) [Poland version].

In the big screen, her filmography includes movies such as Yuma (2012) or Milosc jest wszystkim (2018).

On May 27, 2017, she married Mikolaj Gauer. They have two daughters, She runs a store with children's and family goods in Lodz.