JO
John Frank Onion
John Frank Onion is a lawyer in San Antonio, TX. Practice areas include Administrative and Public, Alternative Dispute Resolution, Appellate: Civil. Court admissions include Fifth Circuit Court of Appeals, Texas Northern District Court. Licensed in Texas since 1984. Graduated from Baylor University in 1983.
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Law school
Bar admission
Office
Disciplinary
JO
John Frank Onion
San Antonio, TX·42 years licensed
Claim profileContact attorney
John Frank Onion is a lawyer in San Antonio, TX. Practice areas include Administrative and Public, Alternative Dispute Resolution, Appellate: Civil. Court admissions include Fifth Circuit Court of Appeals, Texas Northern District Court. Licensed in Texas since 1984. Graduated from Baylor University in 1983.
Law school
Baylor University
Class of 1983
Bar admission
1984
State Bar of TX · #15289500
Office
1610 Hawks Ridge
San Antonio, TX 78248
Disciplinary
None on record
Clean since admission
Case data
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Practice, courts & credentials
Practice areas7 listed
Administrative and PublicAlternative Dispute ResolutionAppellate: CivilEthics-Legal MalpracticeGovernment/AdministrativeLabor-EmploymentOther
Courts admitted5 total
Fifth Circuit Court of Appeals
Texas Northern District Court
Texas Southern District/Bankruptcy Court
Texas Western District Court
US Supreme Court
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Last refreshed Aug 2026