Sonja Rauschenbach (born 1999), known professionally as Lilly Palmer, is a techno music disc jockey and record producer from Germany.
Palmer grew up in the Nuremberg area, and began her musical career in Zurich, working in small bars and clubs. Initially focused as a DJ playing more melodic techno and deep house, Palmer moved into playing higher tempo 150 BPM in response to the audience reaction.
In June 2022 Palmer performed a 2-hour 28-track Essential Mix on BBC Radio 1. The following year, in 2023, she performed a live set direct from a satellite testing chamber at the European Space Agency, which incorporated samples from the ESA sound archive. In 2024 she signed to Armada Music and Kontor Records, with track "Hare Ram" as the first release under the deal. In 2025, Palmer performed at events including the and the Ushuaïa Ibiza Beach Hotel, and followed up with a live techno set transmitted from the DJ Mag headquarters.
Palmer has received accolades in the music press, including being called one of the "most exciting names in techno" by Mixmag magazine, and a "star" by DJ Mag. In 2023 music website EDM.com named Palmer as one of the best "producers of the year".