Michael O'brien
American, b. 1950
Norman O'brien
American, 1920-1982
Justin Maurice O'brien
Australian, 1917-1996
Hugh O'donnell
English, b. 1950
Molly O'gorman
American, 20th Century
Aloysius O'kelly
Irish, 1853-1936
Terry O'neill
Kathleen O'reilly
Ryan & Trevor Oakes
American, b. 1982
William Harold Oakley
English, fl. 1912-1930
Jaime Oates
Spanish, 1912-2005
E.W. von Obenauer
American, 1884-1964
Mary Obering
American, 1937-2022
Jean Oberlé
French, 1900-1961
Lindsay Obermeyer
American, 1966-2020
Tetsuo Ochikubo
American, 1923-1975
Aimé Jérémie Delphin Octobre
French, 1868-1943
Mayumi Oda
Japanese, b. 1941
Arnold Odermatt
Guido Odierna
Italian, 1913-1991
Frankie Odom
American, 1941-2019
Toyin Ojih Odutola
Albert Oehlen
German, b. 1954
Susanne Oellinger
20th century
Jeff Oestreich
American, 20th century
Yoichi Ohira
Japanese, b. 1946
Folke Ohlsson
Swedish, 1919-2003
Helen Oji
American, b. 1956
Avshalom Okashy
Israeli, 1916-1980
Claes Oldenburg
American, 1929-2022
Elizabeth Olds
American, 1897-1991
Moses Oley
Polish-American, 1898-1978
Lauren Olitski
Jules Olitski
American, 1922-2007
Nathan Oliveira
American, 1928-2010
Adriana Oliver
William Oliver
British, 1823-1901
Olivia de Berardinis
American, b. 1948
Jacco Olivier
Dutch, b. 1972
Olivier O. Olivier
French, 1931-2011
Alain Olivieri
French, b. 1962
Edvin Ollers
Swedish
Dennis Olsen
American, 1932-2015
Balthasar Paul Ommeganck
Belgian, 1755-1826
Eo Omwake
American, b. 1946
Gino Onesto
Italian, XX
John Onwy
French, 20th Century
Albert Operti
Italian, 1852-1927
Julian Opie
Catherine Opie
Dennis Oppenheim
American, 1938-2011
John Opper
American, 1908-1994
Lillian Orlowsky
American, 1914-2004
Deborah Oropallo
American, b. 1954
Sergio Lopez Orozco
Mexican, b. 1946
José Ortega
Spanish, 1877-1955
Nivèse Oscari
Belgian, 1944
Osler
British Manufacturer, Founded 1807
Nadin Ospina
Colombian, b. 1960
Alfonso A. Ossorio
Filipino / American, 1916-1990
Dan Ostermiller
Sam Ostrowsky
Russian, 1886-1946
Vivian Oswell
American, XX/XXI
La Maison Desny and others
French Manufacturer, active 1927-1933
Hisashi Otsuka
Japanese, b. 1947
Jeanne Risica and Ronald Ottaviano
Tom Otterness
American, b. 1952
Waldemar Otto
Polish, b. 1929
Thérèse Oulton
British, b. 1953
Donald Outerbridge
American, 1923-1988
Ramon Oviedo
Dominican, 1927-2015
Robert Emmett Owen
1878-1957
Laura Owens
Jack Ox
Amédée Ozenfant
French, 1886-1966
