1
Occupational Therapist
A clinician who helps patients regain or develop the skills needed for daily activities at home, school, and work.
If you've been searching for professions that start with O, you'll find 11 detailed professions below. We're not interested in giving you only a list of names — every entry on this page links to a full profile with the kind of detail you'd actually want to know.
For professions, that means category, training path, work environment, salary range, and key skills.
List of Professions That Start With O
2
Oceanographer
An earth scientist who studies the physical, chemical, biological, and geological processes of the world's oceans.
3
Oncologist
A physician who diagnoses and treats cancer using chemotherapy, immunotherapy, and other systemic therapies.
4
Ophthalmologist
A physician and surgeon specialized in medical and surgical treatment of eye disease.
5
Optician
A vision-care professional who fits eyeglass frames and contact lenses based on prescriptions written by optometrists or ophthalmologists.
6
Optometrist
A primary eye-care provider who examines vision, prescribes corrective lenses, and detects ocular and systemic disease.
7
Ornithologist
A zoologist who specializes in the study of birds, including their behavior, ecology, and evolution.
8
Orthodontist
A dental specialist who diagnoses and corrects misaligned teeth and jaws using braces, aligners, and other appliances.
9
Orthopedic Surgeon
A physician specialized in surgical and nonsurgical treatment of the musculoskeletal system, including bones, joints, and ligaments.
10
Osteopath
A physician trained in both conventional medicine and osteopathic manipulative treatment of the musculoskeletal system.
11
Otolaryngologist
A surgical specialist who treats diseases of the ear, nose, throat, and related structures of the head and neck.
About professions starting with O
That's our current list of professions starting with the letter O. We add new entries every week — if you have a favorite profession starting with O that isn't on this page, let us know and we'll write it up.
Looking for more? Try professions that end with O, or contain O anywhere in the name.