Maren Lundby (born 7 September 1994) is a retired Norwegian ski jumper.

[citation needed] Lundby represents the Kolbu KK ski club.

She made her debut in the Continental Cup, the highest level in women's ski jumping at the time, on 12 August 2007 with a 56th place in Bischofsgruen.

12 March 2020, Lundby won the second edition of Raw Air and also became the first woman to win the World Cup three years in a row.

In October 2021, Lundby withdrew from the 2022 Winter Olympics and said she had difficulties losing weight and did not feel she could perform at the top level.