Olwen Jones was born in London of Welsh parents and trained at the Harrow School of Art and the Royal Academy Schools. While furthering her career as an artist, she lectured part-time at both Harrow School of Art & Putney School of Art.
Olwen Jones works in East Anglia as a painter and printmaker. She has had numerous exhibitions, both solo and mixed and as far afield as the Trade Centre in Moscow. Her paintings and prints are in the collections of the National Museum of Wales, Greenwich Library, the Department of the Environment and many others. In 1970 Trust House Forte commissioned a set of nine mural paintings illustrating John Masefield's poem Cargoes. She became an Associate of the Royal Society of Painter-Printmakers in 1979 and a Fellow in 1982.
Olwen Jones was elected an Associate of the Royal Watercolour Society in 1989 and a Fellow in 1992. In 2004 she was made Vice President of the Royal Watercolour Society. She is married to the painter Charles Bartlett.