Johanna Simone Pertens (born 8 May 2009) is an Estonian rhythmic gymnast. She represents her country in international competitions as a member of the senior group.
Career.
In 2022 Pertens competed in the German club championship with 
In 2025, with the start of a new Olympic cycle, she integrated the new Estonian senior group composed by her, Ksenja Ozigina (the only remaining gymnast from the previous group), Elys Kretelle Kukk, Nika Oborskaja, Polina Tubaleva and Kamila Grigorenko. In April the group won two gold medals at the Grand Prix in Thiais. In early May they competed at the European Cup stage in Baku, winning silver with 5 ribbons.