| Kiyoshi Oabayashi (Tokyo, JP) | Jayawant V. Oak (Gold River, CA) | Michael J. Oakely (Derby, GB) |
| Jon R. Oace (Portland, OR) | Naomi Oak (Corvallis, OR) | Andrew Oakes (Harrington Park, NJ) |
| Stephen W. Oachs (Spokane, WA) | Sang Soo Oak (Taegu, KR) | Andrew Mark Oakes (Duxbury, MA) |
| Theodore James Oade (Colorado Springs, CO) | Sang Soo Oak (Daegu, KR) | Bryan K. Oakes (Gastonia, NC) |
| Ross A. Oades (Winnipeg, Manitoba CA) | Seong Min Oak (Masan, KR) | Bryan R. Oakes (Redmond, WA) |
| Keiichi Oae (Kariya, JP) | Seong Min. Oak (Masan, KR) | Dean C. Oakes (Boynton Beach, FL) |
| Yoshihisa Oae (Kawasaki, JP) | Seung-soo Oak (Gyeonggi-do, KR) | Doreen Oakes (Eagan, MN) |
| Yoshihisa Oae (Kanagawa, JP) | Seung-Soo Oak (Kyonggi-do, KR) | Eric J. Oakes (Del Mar, CA) |
| Jamie Oag (Aberdeen, GB) | Sunil S. Oak (Sugar Land, TX) | Frank R. Oakes (Port Hueneme, CA) |
| Jamie George Oag (Aberdeen, GB) | Uttara Vinayak Oak (Maharashtra, IN) | Fred T. Oakes (Malvern, PA) |
| Keith Oag (Rugby, GB2) | Vijay V. Oak (Raleigh, NC) | Fred T. Oakes (Rochester, NY) |
| Susumu Oagu (Kanagawa-ken, JP) | Goro Oakamoto (Hyogo, JP) | Fred T. Oakes (Melvern, PA) |
| Sue Oah (Ridgecrest, CA) | Takeshi Oakamura (Osaka, JP) | Fred Terry Oakes (Rochester, NY) |
| Abhijit Oak (Orinda, CA) | Theodore C. Oakberg (Forest grove, OR) | Fred. T. Oakes (Rochester, NY) |
| Albert Charley Oak (West Bend, WI) | Theodore C. Oakberg (Forest, OR) | Garrett T. Oakes (San Jose, CA) |
| Eugene Oak (Los Angeles, CA) | Warren R. Oakdale (Upland, CA) | Gene R. Oakes (Centerville, UT) |
| Ganesh Mukund Oak (Thane, IN) | Elizabeth Anne. Oakden (Gardnerville, NV) | |
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