About
Matthew J. Mankey is an experienced criminal defense attorney dedicated to protecting the rights of individuals facing serious charges. With a legal career spanning over three decades, he has successfully defended clients in state and federal courts. His expertise covers a wide range of cases, including drug violations, sex crimes, federal offenses, and violent crimes such as assault and robbery.
Mr. Mankey’s legal foundation is built on a strong academic background. He earned his law degree from William Mitchell College of Law in 1992, graduating with honors. Before law school, he studied government and history at St. John’s University and pursued international affairs at American University. His global perspective was further enriched through studies in Austria and Mexico, reinforcing his ability to handle complex legal matters.
Since his admission to the Minnesota State Bar in 1992 and the Federal Bar in 1993, Mr. Mankey has worked tirelessly to defend clients against severe criminal allegations. His practice in Golden Valley focuses entirely on criminal defense, ensuring that every client receives dedicated legal representation. He has been appointed to numerous cases as a federal criminal defense attorney, demonstrating his deep understanding of federal law.
Beyond private practice, Mr. Mankey has served as a contract public defender, advocating for those who could not afford legal representation. His experience as a conciliation court judge since 1997 has given him valuable insights into the judicial process. His commitment to justice has been recognized through multiple “Super Lawyer” awards, solidifying his reputation as a trusted advocate.
With a track record of defending clients in complex cases, Mr. Mankey remains a steadfast advocate for justice. Whether handling high-stakes federal charges or defending against state-level offenses, he ensures that every client receives a strong, strategic defense.
Law Office Affiliations
- Founder, Mankey Law Office
- Member, National Association of Criminal Defense Lawyer
- Member, Minnesota State Bar Association
Licensed State
- Minnesota
Education
- William Mitchell College of Law
Juris Doctor (JD) - American University
Masters MA) - St John’s University
Bachelor of Arts (BA)
Awards & Badges


- Drug Crime
- DUI & DWI
- Federal Crime
- Sex Crime
- Sexual Harassment




