| OHEA | Oklahoma Homebuyer Education Association | 俄克拉荷马州购房者教育协会 |
| OHEA | Oregon Home Educators Association | 俄勒冈州家庭教育者协会 |
| OHEA | Oak Harbor Education Association | 橡树港教育协会 |
| OHEA | Ohio Humane Education Association | 俄亥俄州人文教育协会 |
| OHEA | Office of Health Effects Assessment | 健康影响评估办公室 |
| OHEA | Office of Health and Environmental Assessment | 健康和环境评估办公室 |