O'Connell, Brendan
New York artist creates abstract paintings and photo-based paintings. This site provides virtual galleries of the artist's work, a chat room forum on contemporary arts and online ordering.
http://www.brendanoconnell.com/

Ocampo, Octavio
Art prints. Must see them to need them. Retail and wholesale. Framed or double matted in a variety of sizes.
http://www.questionmark.net

Ogg, Stuart
Flower and landscape photographs and paintings of the River Thames area near Oxford England.
http://www.stuartoggart.co.uk/

Olsen, Barbara
Collages and prints for sale by American artist.
http://www.barbaraolsen.com/

Olson, George
Architect and Old World pen and ink artist.
http://www.olsongalleries.com

Olson, Jim
Features pen & ink drawings, notecards, Christmas cards, folk art, and shaker boxes.
http://www.jonoart.com

Olson, Shirley LaRee
Figurative sculpture in bronze and paper clay, landscape paintings in acrylic, oil, or watercolor, prints and note cards.
http://www.olsonart.com/

Oppenheimer, Martin
Gallery of charcoal drawings, oil paintings, wood and bronze sculpture, and mixed media artwork. Site provides artist’s biography and articles on artistic techniques.
http://www.oppenheimerart.com/

Orsillo, Bob
Offers limited and open editions works. Information about the artist, image galleries of works, press releases.
http://www.orsillo.com/

Owens, Nate
Humorous western art, paintings, prints, greeting cards, mugs and gift products. Commercial illustration and design.
http://nateowens.com/

The Oiseaux Sisters
Artwork of the Oiseaux Sisters, Susan Andrews and Carolyn Fellman. It features one of a kind mixed media art work.
http://www.oiseauxsisters.com