| Initial Matriculation | Last Name | First Name | Department | Graduate? | Year |
| 1902-1903 | Olberg | Edwin Julius | Academy | no | |
| 1900-1901 | Oleson | Henry Albert | Academy/Classical | yes | 1904 |
| 1879-1880 | Oleson | Wilhelm. | Academy | no | |
| 1891-1892 | Oleson (Olson?) | Christina N. | Academy | no | |
| 1878-1879 | Oli | Ole O. | Academy | yes | 1882 |
| 1903-1904 | Olsen | Caroline | Music department/piano | no | |
| 1894-1895 | Olsen (Olson?) | Carrie Emily (Mrs. H. B. Kildahl) | Academy | no | |
| 1894-1895 | Olsen (Olson?) | Ella Ruth (Mrs. Emil Molstad) | Academy | yes | 1897 |
| 1893-1894 | Olson | Alfred | Academy | no | |
| 1896-1897 | Olson | Andrew C. | Academy | yes | 1899 |
| 1899-1900 | Olson | Andrew C. | College | no | |
| 1904-1905 | Olson | Anna Maria | Academy | no | |
| 1904-1905 | Olson | Belle Rosalie | College | no | |
| 1904-1905 | Olson | Caleb Jonathan | Academy/Scientific | yes | 1909 |
| 1881-1882 | Olson | Carl Martin. | Academy | no | |
| 1900-1901 | Olson | Caroline Amelia (Amalia?) | Academy | no | |
| 1901-1902 | Olson | Clara | Academy | no | |
| 1902-1903 | Olson | Clay Wesley | Academy | no | |
| 1897-1898 | Olson | Edna Marie | Academy | no | |
| 1884-1885 | Olson | Edward | Academy | no | |
| 1887-1888 | Olson | Edward | Academy | no | |
| 1882-1883 | Olson | Embert | Academy | no | |
| 1896-1897 | Olson | Frederik Arnold | Academy | no | |
| 1887-1888 | Olson | George Albert | Academy | no | |
| 1894-1895 | Olson | George Walter | Academy | yes | 1899 |
| 1899-1900 | Olson | George Walter | College | no | |
| 1887-1888 | Olson | Gurine | Academy | no | |
| 1902-1903 | Olson | Henry Oliver | Academy | no | |
| 1891-1892 | Olson | Hermana | Academy | no | |
| 1904-1905 | Olson | Ingara | School of Music/piano, voice culture | no | |
| 1890-1891 | Olson | Isaac C. | Academy | no | |
| 1889-1890 | Olson | Lars J. | Academy | no | |
| 1900-1901 | Olson | Lulu Anne | Academy | no | |
| 1877-1878 | Olson | Marie | Academy | no | |
| 1888-1889 | Olson | Martin C.L. | Academy | no | |
| 1876-1877 | Olson | Martinius | Academy | no | |
| 1900-1901 | Olson | Nils Johannes | Academy | no | |
| 1879-1880 | Olson | Nils S. | Academy | no | |
| 1882-1883 | Olson | Nils. | Academy | no | |
| 1904-1905 | Olson | Oscar Elmer | Academy | no | |
| 1890-1891 | Olson | Oscar M. | Academy | no | |
| 1902-1903 | Olson | Otto Gerhard | Academy | no | |
| 1881-1882 | Olson | Rosa | Academy | no | |
| 1887-1888 | Olson | Susie | Academy | no | |
| 1899-1900 | Olson | Theodore | Academy | no | |
| 1887-1888 | Olson | William (Wilken?) H. | Academy | no | |
| 1899-1900 | Olson | Otto Gustinus | Academy | no | |
| 1891-1892 | Olson (Oleson?) | Christina N. | Academy | no | |
| 1892-1893 | Olson (Oleson?) | Ole | Academy | no | |
| 1892-1893 | Olson (Oleson?) | Ole | Academy | no | |
| 1894-1895 | Olson (Olsen?) | Carrie Emily (Mrs. H. B. Kildahl) | Academy | no | |
| 1894-1895 | Olson (Olsen?) | Carrie Emily (Mrs. H. B. Kildahl) | Academy | no | |
| 1894-1895 | Olson (Olsen?) | Ella Ruth (Mrs. Emil Molstad) | Academy | yes | 1897 |
| 1892-1893 | Omdahl | Alvilda | Music Department | no | |
| 1891-1892 | Omdahl | Gustava Cornelius A. | Academy | yes | 1893 |
| 1893-1894 | Omodt | Amanda | Academy | no | |
| 1898-1899 | Omodt | Arnold | Academy | no | |
| 1894-1895 | Omodt | Ferdinand Meyer | Academy | yes | 1897 |
| 1900-1901 | Omodt | Ferdinand Meyer | College | no | |
| 1900-1901 | Onerheim | Lars Olaf (Olai?) | Academy | no | |
| 1903-1904 | Onnerem | Andrew | Academy | no | |
| 1882-1883 | Onsgaard | Barbara | Academy | no | |
| 1885-1886 | Onsgaard (Onsgard?) | Carrie | Academy | no | |
| 1885-1886 | Onsgard (Onsgaard?) | Carrie | Academy | no | |
| 1894-1895 | Onstad | Andrew | Academy | yes | 1898 |
| 1890-1891 | Onstad | Carl Johan | Academy | no | |
| 1898-1899 | Onstad | Ingerid Louise Marie | Academy | no | |
| 1889-1890 | Onstad | John | Academy | no | |
| 1894-1895 (retur | Onstad | Louisa | Music Department | no | |
| 1875 | Onstad | M. | Academy | no | |
| 1904-1905 | Onstad | Paul Martin | Academy | no | |
| 1898-1899 | Opdahl | Anders O. | Academy | no | |
| 1900-1901 | Opdahl | Carl Henry | Academy/Scientific | yes | 1905 |
| 1875 | Opdahl | Ole | Academy | no | |
| 1901-1902 | Opheim | John Olai | Academy | no | |
| 1904-1905 | Opjorden | Gudrun | Academy/Scientific | yes | 1908 |
| 1875-1876 | Opsal | Matt G. | Academy | no | |
| 1875-1876 | Opsal | G. G. | Academy | no | |
| 1898-1899 | Orcutt | Alfred Walter | Academy | no | |
| 1902-1903 | Oredalen | Julia | Academy | no | |
| 1902-1903 | Oredalen | Mary | College | no | |
| 1903-1904 | Oredalen | Oline | Academy | no | |
| 1899-1900 | Ormbrek | Ole Andreas | Academy | no | |
| 1903-1904 | Osmundson | Albert Osmund | Academy | no | |
| 1892-1893 | Osmundson | Ambrosia Sophia | Academy | no | |
| 1878-1879 | Osmundson | John O. | Academy | no | |
| 1903-1904 | Osmundson | John Orville | Academy | no | |
| 1875-1876 | Ostensen | Eli. | Academy | no | |
| 1875-1876 | Ostrem | Mary (Mrs. Carl N. Lien) | Academy | no | |
| 1898-1899 | Ostwig | Richter N. | College | no | |
| 1900-1901 | Otterholt | Mathilda | Academy | no | |
| 1881-1882 | Otternes | Peder G. | Academy | no | |
| 1884-1885 | Otterness | Erik | Academy | no | |
| 1886-1887 | Otterness | Oliver A. | Academy | no | |
| 1903-1904 | Otterstad | Nels T. | Academy/Classical | yes | 1906 |
| 1882-1883 | Otteson | Lina. | Academy | no | |
| 1901-1902 | Ottosen (Ottoson?) | Carrie | Academy | no | |
| 1901-1902 | Ottoson (Ottosen?) | Carrie | Academy | no | |
| 1904-1905 | Overby | Christen (ian?) Olaus | Academy | no | |
| 1903-1904 | Overby | Hans | Academy | no | |
| « previous 100 | |||||