John Joseph MacKinnon
- Verified against the Supreme Court of Ohio attorney directory, July 2026
43 years in practice
First admitted in 1983
First admitted in 1983
- 1983 Admitted, Ohio
Overview
John Joseph MacKinnon is an attorney admitted in Ohio (since 1983), based in Columbus, OH.
This profile is built from public bar records and shows only what those records contain. John has not written or endorsed anything on this page.
Jurisdictions admitted
| Jurisdiction | Admitted | Bar number | Status |
|---|---|---|---|
| Ohio | 1983 | #18917 | Active |
Education
- Capital UniversityLaw school, per the bar record
Contact and offices
John J. MacKinnon
1 East Livingston Avenue
Columbus, OH 43215
The address and number above come from the attorney's public bar registration, which can lag a recent move. Confirm before visiting.
Other attorneys in Columbus
Ordered by years licensed, from the same public records.
Sources for this profile: the Supreme Court of Ohio attorney directory. License status can change; check the bar's own record for the current status before hiring. Updated July 12, 2026.