Mette Greftegreff is a self-taught Norwegian painter. Her works are dominated by a tapestry of abstract imagery and whimsical figures. Her work is seen with a mix of adolescent lines and shapes, creating a somewhat child like and raw visual expression in her works. 

In 2023, Greftegreff debuted with a solo exhibition at Fineart. The exhibition, which included original works, sold out, placing her at the top of the list of best-selling female artists of the same year at Fineart. Greftegreff is exclusively represented by Fineart in Norway.

She is born in Oslo, but has lived briefly in Zimbabwe, Argentina and France, and spent one year in China and four years in Hong Kong before moving back to Norway in 2019, where she now resides and work.