Sidonie von Krosigk (born October 21, 1989, in Munich) is a German actress.

At the age of just seven, von Krosigk made her screen debut in the film *Die Rache der Carola Waas*. She landed her first lead role in 1998 in *Verschwinde von hier*. She achieved national recognition in 2002 with the title role in the feature film *Bibi Blocksberg*. For her portrayal of Bibi Blocksberg, she received the Children's Media Award for Best Young Actress. Two years later, she reprised the lead role in *Bibi Blocksberg und das Geheimnis der blauen Eulen*.