| School | City | Students | Highest
Degree | Tenure System |
|---|
| O'More College of Design | Franklin, TN | 202 | Bachelors | |
| Oak Hills Christian College | Bemidji, MN | 142 | Bachelors | |
| Oakland City University | Oakland City, IN | 1,733 | | |
| Oakland Community College | Bloomfield Hills, MI | 24,957 | Associates | |
| Oakland University | Rochester Hills, MI | 18,175 | Doctoral & professional | yes |
| Oakton Community College | Des Plaines, IL | 10,747 | Associates | yes |
| Oakwood University | Huntsville, AL | 1,865 | Masters | yes |
| Oberlin College | Oberlin, OH | 2,864 | Masters | yes |
| Oblate School of Theology | San Antonio, TX | 173 | | |
| Occidental College | Los Angeles, CA | 1,868 | Masters | yes |
| Ocean County College | Toms River, NJ | 9,811 | Associates | yes |
| Odessa College | Odessa, TX | 4,687 | Associates | yes |
| Ogeechee Technical College | Statesboro, GA | 1,903 | Associates | |
| Oglala Lakota College | Kyle, SD | 1,531 | Masters | |
| Oglethorpe University | Atlanta, GA | 1,053 | Masters | yes |
| Ohio and Illinois Centers for Broadcasting | | | | |
| Ohio Christian University | Circleville, OH | 780 | Masters | |
| Ohio Christian University Online | | | | |
| Ohio College of Massotherapy | Akron, OH | 299 | Associates | |
| Ohio Dominican University | | | | |
| Ohio Institute of Photography and Technology | | | | |
| Ohio Northern University | Ada, OH | 3,721 | | yes |
| Ohio State University Agricultural Technical Institute | Wooster, OH | 754 | Associates | yes |
| Ohio State University-Lima Campus | Lima, OH | 1,409 | Masters | yes |
| Ohio State University-Main Campus | Columbus, OH | 53,715 | Doctoral & professional | yes |
| Ohio State University-Mansfield Campus | Mansfield, OH | 1,545 | Masters | yes |
| Ohio State University-Marion Campus | Marion, OH | 1,673 | Masters | yes |
| Ohio State University-Newark Campus | Newark, OH | 2,472 | Masters | yes |
| Ohio Technical College | Cleveland, OH | 966 | Associates | |
| Ohio University Online | | | | |
| Ohio University-Chillicothe Campus | Chillicothe, OH | 1,978 | Masters | yes |
| Ohio University-Eastern Campus | Saint Clairsville, OH | 774 | Masters | yes |
| Ohio University-Lancaster Campus | Lancaster, OH | 1,868 | Masters | yes |
| Ohio University-Main Campus | Athens, OH | 21,369 | Doctoral & professional | yes |
| Ohio University-Southern Campus | Ironton, OH | 1,831 | Masters | yes |
| Ohio University-Zanesville Campus | Zanesville, OH | 1,893 | Masters | yes |
| Ohio Valley University | Vienna, WV | 515 | Masters | yes |
| Ohio Wesleyan University | Delaware, OH | 1,959 | Bachelors | yes |
| Ohlone College | Fremont, CA | 12,896 | Associates | yes |
| Okefenokee Technical College | Waycross, GA | 1,563 | Associates | |
| Oklahoma Baptist University | Shawnee, OK | 1,769 | Masters | yes |
| Oklahoma Christian University | Edmond, OK | 2,166 | Masters | yes |
| Oklahoma City Community College | Oklahoma City, OK | 12,508 | Associates | |
| Oklahoma City University | Oklahoma City, OK | 3,884 | | yes |
| Oklahoma Panhandle State University | Goodwell, OK | 1,223 | Bachelors | yes |
| Oklahoma State University Center for Health Sciences | Tulsa, OK | 68 | Doctoral & professional | yes |
| Oklahoma State University Institute of Technology-Okmulgee | Okmulgee, OK | 3,558 | Bachelors | |
| Oklahoma State University-Main Campus | Stillwater, OK | 22,995 | Doctoral & professional | yes |
| Oklahoma State University-Oklahoma City | Oklahoma City, OK | 5,871 | Bachelors | yes |
| Oklahoma Wesleyan University | Bartlesville, OK | 1,021 | Masters | |
| Oklahoma Wesleyan University Online | | | | |
| Old Dominion University | Norfolk, VA | 23,086 | Doctoral & professional | yes |
| Olivet College | Olivet, MI | 1,174 | Masters | yes |
| Olivet Nazarene University | | | | |
| Olympic College | Bremerton, WA | 7,152 | Bachelors | yes |
| Onondaga Community College | Syracuse, NY | 10,712 | Associates | yes |
| Oral Roberts University | Tulsa, OK | 3,067 | Doctoral & professional | yes |
| Orange Coast College | Costa Mesa, CA | 24,742 | Associates | yes |
| Orange County Community College | Middletown, NY | 6,763 | Associates | yes |
| Orangeburg Calhoun Technical College | Orangeburg, SC | 2,737 | Associates | |
| Oregon Coast Community College | Newport, OR | 524 | Associates | |
| Oregon College of Art and Craft | Portland, OR | 140 | Bachelors | |
| Oregon College of Oriental Medicine | Portland, OR | 296 | | |
| Oregon Health & Science University | Portland, OR | 2,424 | Doctoral & professional | yes |
| Oregon Institute of Technology | Klamath Falls, OR | 3,515 | Masters | yes |
| Oregon State University | Corvallis, OR | 20,305 | Doctoral & professional | yes |
| Oregon State University Online | | | | |
| Oregon State University-Cascades Campus | Bend, OR | 509 | Masters | |
| Orlando Culinary Academy | | | | |
| Orleans Technical Institute | Philadelphia, PA | 659 | Associates | |
| Otero Junior College | La Junta, CO | 1,551 | Associates | |
| Otis College of Art and Design | Los Angeles, CA | 1,206 | Masters | |
| Otterbein College | Westerville, OH | 3,131 | Masters | yes |
| Ouachita Baptist University | Arkadelphia, AR | 1,493 | Bachelors | yes |
| Ouachita Technical College | Malvern, AR | 1,600 | Associates | |
| Our Lady of Holy Cross College | New Orleans, LA | 1,290 | Masters | |
| Our Lady of the Lake College | Baton Rouge, LA | 1,956 | Masters | |
| Our Lady of the Lake University-San Antonio | San Antonio, TX | 2,642 | Doctoral & professional | yes |
| Owens Community College | Perrysburg, OH | 21,095 | Associates | yes |
| Owensboro Community and Technical College | Owensboro, KY | 5,581 | Associates | yes |
| Oxnard College | Oxnard, CA | 7,840 | Associates | yes |
| Ozark Christian College | Joplin, MO | 612 | Bachelors | |
| Ozarka College | Melbourne, AR | 1,333 | Associates | |
| Ozarks Technical Community College | Springfield, MO | 11,116 | Associates | |
