Mary Jewels (5 February 1886–1977) was a British painter, born in Newlyn in Cornwall.

Jewels never had any formal training and painted in a naïve style, mainly landscapes, portraits, fishing and harbour scenes in oil. She was a friend of artist Dod Procter, and her sister Cordelia was married to the sculptor Frank Dobson. She was widowed by 1918 and was encouraged to paint by Cedric Morris.^[1] She gained national attention after Augustus John convinced her to exhibit her works in London in 1928.^[2]