Artist names beginning with O
| Olmsted, Barbara | American, born 1915 |
| Olney, Edith | American, active c. 1935 |
| Olsen, John | Australian, born 1920 |
| Olson, Hilda | American, active c. 1935 |
| O'Mara, James | American, active c. 1935 |
| Ominsky, Frank Kayden | American, 1898 - 1981 |
| Onchi, Koshiro | Japanese, 1891 - 1955 |
| O'Neil, John | American, 1915 - 2004 |
| O'Neill, J.J. | American, active c. 1935 |
| Ono, Yoko | American, born 1933 |
| Onofri, Vincenzo | Italian, active c. 1503/1524 |
| Onofri, Crescenzio | Italian, probably 1632 - 1712 or after |
| Onofrio, Crescenzio di | Italian, probably 1632 - 1712 or after |
| Oost II, Jacob van | Flemish, 1637 - 1713 |
| Oosting, Adriana Johanna Wilhelmina Bieruma | Dutch, born 1898 |
| Oosting, Jeanne Bieruma | Dutch, born 1898 |
| Opie, John | British, 1761 - 1807 |
| Oppenheim, Moritz Daniel | German, 1800 - 1889 |
| Oppenheim, Dennis | American, born 1938 |
| Oppenheim, Dennis A. | American, born 1938 |
| Oppenheim, Meret | Swiss, 1913 - 1985 |
| Oppenheimer, Max | Austrian, 1885 - 1954 |
| Oppenoordt, Gilles-Marie | French, 1672 - 1742 |
| Oppenord, Gilles Marie | French, 1672 - 1742 |
| Oppenordt, Gilles-Marie | French, 1672 - 1742 |
| Opper, John | American, 1908 - 1994 |
| Oppler, Ernst | German, 1867 - 1929 |
| Opstad, Adolph | American, active c. 1935 |
| Orbeck, Jay | American, active second half 20th century |
| Page 3 - Artists 59 thru 87 of 167 | ||
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