| Match | Name | Date Range of Death |
|---|---|---|
| Ascending | Ascending | Ascending |
| OUGIER, PETER | 1801-1820 (Volume V) | |
| OSTELL, JOHN | 1891-1900 (Volume XII) | |
| OSLER, Sir EDMUND BOYD | 1921-1930 (Volume XV) | |
| ORR, WESLEY FLETCHER | 1891-1900 (Volume XII) | |
| ORONHYATEKHA | 1901-1910 (Volume XIII) | |
| ORKNEY, JAMES | 1821-1835 (Volume VI) | |
| ORILLAT, JEAN | 1771-1800 (Volume IV) | |
| OPPENHEIMER, DAVID | 1891-1900 (Volume XII) | |
| ONDERDONK, ANDREW | 1901-1910 (Volume XIII) | |
| OLIVER, ADAM | 1881-1890 (Volume XI) | |
| OLABARATZ, JOANNIS-GALAND D’ | 1771-1800 (Volume IV) | |
| OILLE, GEORGE NICHOLAS | 1881-1890 (Volume XI) | |
| OGILVY, JOHN | 1801-1820 (Volume V) | |
| OGILVIE, WILLIAM WATSON | 1891-1900 (Volume XII) | |
| OGILVIE, ALEXANDER WALKER | 1901-1910 (Volume XIII) | |
| OAKES, FORREST | 1771-1800 (Volume IV) | |
| O’REILLY, PETER | 1901-1910 (Volume XIII) | |
| O’NEILL, JAMES EDWARD | 1911-1920 (Volume XIV) | |
| O’LEARY, HENRY | 1891-1900 (Volume XII) | |
| O’KEEFE, EUGENE | 1911-1920 (Volume XIV) | |
| O’KEEFE, CORNELIUS | 1911-1920 (Volume XIV) | |
| O’HARA, FELIX | 1801-1820 (Volume V) | |
| O’HARA, EDWARD | 1821-1835 (Volume VI) | |
| O’CONNOR, WILLIAM JOSEPH | 1891-1900 (Volume XII) | |
| O’BRIEN, LUCIUS RICHARD | 1891-1900 (Volume XII) | |
| NUGENT, RICHARD | 1851-1860 (Volume VIII) | |
| NOTMAN, WILLIAM | 1891-1900 (Volume XII) | |
| NORTHWAY, JOHN | 1921-1930 (Volume XV) | |
| NORQUAY, JOHN | 1881-1890 (Volume XI) | |
| NORMAN, NATHAN | 1881-1890 (Volume XI) | |
| NOËL, MARIE-GENEVIÈVE | 1821-1835 (Volume VI) | |
| NISBET, THOMAS | 1836-1850 (Volume VII) | |
| NIELSEN, ADOLPH | 1901-1910 (Volume XIII) | |
| NICKINSON, CHARLOTTE | 1901-1910 (Volume XIII) | |
| NICHOLLS, FREDERIC THOMAS | 1921-1930 (Volume XV) | |
| NICHOL, WALTER CAMERON | 1921-1930 (Volume XV) | |
| NICHOL, ROBERT | 1821-1835 (Volume VI) | |
| NIAQUTIAQ (Niaqutsiaq, Neahkoteah, Neakuteuk) | 1921-1930 (Volume XV) | |
| NEWMAN, WILLIAM HERMAN | 1891-1900 (Volume XII) | |
| NEWMAN, ROBERT | 1801-1820 (Volume V) | |
| NEWBIGGING, JAMES | 1836-1850 (Volume VII) | |
| NEVINS, JAMES | 1891-1900 (Volume XII) | |
| NEVINS, ARCHIBALD | 1801-1820 (Volume V) | |
| NELSON, JOHN | 1701-1740 (Volume II) | |
| NELSON, HUGH | 1891-1900 (Volume XII) | |
| NELSON, EDWIN G | 1901-1910 (Volume XIII) | |
| NELLES, ROBERT | 1836-1850 (Volume VII) | |
| NEILSON, WILLIAM | 1911-1920 (Volume XIV) | |
| NEILSON, SAMUEL (1800-37) | 1836-1850 (Volume VII) | |
| NEILSON, JOHN | 1836-1850 (Volume VII) |