Ragnhild Abelset (1660-1733), was a Norwegian merchant, landowner and Lensmann.
She married Knud Nilssen Wig, merchant, landowner and Lensmann in Sunnmøre, in 1678. When she was widowed in 1703, she inherited not only his estate and business company, but also his office of Lensmann. She is known as the ancestral mother of several of the most known families of Sunnmøre.