Petra Maarit Olli (born 5 June 1994)[3] is a retired Finnish freestyle wrestler.

She won the silver medal at the 2015 World Wrestling Championships in the Women's freestyle 58 kg-event.

In March 2016 Olli won her first European Championship gold medal at the Senior-level in Riga, Latvia, defeating Oksana Herhel of Ukraine.

[4] Olli missed the 2019 World Wrestling Championships due to health problems.

[6] This biographical article relating to a Finnish sport wrestler or wrestling coach is a stub.