O’brien, J. D. · Pittsburgh
O’brien, Vincent · Long Island
O’Donnell, Roger Francis · Pittsfield
O’Laughlin, J. · Boston
O’Loughlin, Terrence · Boston, Los Angeles
O’Mahoney, James · Mitchelstown
Oakes, W. W. · Seattle · worked 1895–1900
Obbo, Marcus (I) · Naples · worked 1707–1760
Obbo, Marcus (II) · Naples · worked 1803
Oberberg, Vladimir · Moscow · worked 1927
Oberg, Carl · Stockholm · worked 1814–1821
Oberhoffer, Englbert · Volklingen · worked 1924
Oberkirsch, Johann Carl · Mulheim · b. 1800
Oberlander, Rudolf · Kopisty · b. 1932
Obermaier, Alexander · Dresden · b. 1872
Obici, Bartolomeo (I) · Verona · worked 1665–1686
Obici, Bartolomeo (II) · Verona · worked 1750–1762
Obici, Prospero · Modena · worked 1880
Obizzi, Marquis Tomasso Degli · Padua · worked 1769
Obrecht, Mathias · Colmar · worked 1819
Ochs, Henry P. · Oregon · worked 1961
Octigan, William · Melbourne · worked 1920–1930
Odani, Giuseppe Morello · Naples · worked 1730–1760
Odden, Gunder · Granite Falls · worked 1957
Oddone, Carlo Giuseppe · Turin · 1866–1935
Odoardi, Antonio (I) · Poggia and Ascoli · worked 1800
Odoardi, Antonio (II) · Poggia and Ascoli
Odoardi, Giuseppe · Ascoli and 2 more · b. 1746
Odoj, Hubert Jan · b. 1924
Odulf, Gustaf · Stockholm · b. 1899
Oeberg, S A · Stockholm
Oehme, Adam Gottfried · Freiburg
Oeller, Carl · Salzburg
Oelling, Johann Valentin · Crawinkel · 1822–1899
Oerlecke, Heinrich Christian · Tangermunde
Oernberg, N. · Westeras · worked 1790
Oertel, Louis · Hanover · worked 1866–1926
Oettel, Arthur · Markneukirchen · worked 1878–1925
Oettinger, A. J. · Boston · b. 1860
Offenbeeck, Abraham Jooseten Van · Antwerp · c.1580–1628
Ohberg, Johann (I) · Stockholm · 1723–1779
Ohberg, Johann (II) · Stockholm · 1753–1781
Ohlhaver, Heinrich · Hamburg · worked 1921
Ohlsson, Emil · Nykoping · b. 1892
Ohlsson, Emil E. · Stockholm · b. 1896
Ohlsson, John · Emmaboda · b. 1893
Ohm, Friedrich Wilhelm · Basle · b. 1904
Ohman, John · Spokane · 1900–1983
