About
Dean Dietrich is a shareholder at Weld Riley, S.C. and a member of the firm’s labor and employment section. He focuses on school law, municipal law, labor relations, employment law, and professional responsibility matters. With more than four decades of legal experience, he is widely recognized across Wisconsin for his steady guidance and deep knowledge of the law. He works closely with public and private sector employers, helping them manage complex workplace issues and follow state and federal regulations. His clients value his clear advice, practical solutions, and strong representation.
Dean earned his Bachelor’s Degree and his J.D. from Marquette University. His education built the foundation for a long and respected legal career. His academic training, combined with years of hands-on experience, allows him to address legal challenges with confidence and skill.
Dean has represented employers in collective bargaining and in proceedings before state and federal administrative agencies throughout his career. He advises school districts and local government units on compliance with state statutes and municipal regulations. He also provides guidance on employment policies, workplace investigations, and labor disputes.
Dean Dietrich is also highly regarded in professional responsibility. He serves on the State Bar of Wisconsin’s Committee on Professional Ethics and is a member of the Association of Professional Responsibility Lawyers. He has represented attorneys in proceedings before the Wisconsin Supreme Court and the Office of Lawyer Regulation, and he regularly provides expert opinions on ethics matters.
Law Office Affiliations
- Shareholder, Weld Riley, S.C.
- Member, State Bar of Wisconsin
- Member, Association of Professional Responsibility Lawyers
Licensed State
- Wisconsin
Education
- Marquette University Law School
Juris Doctor (J.D.) - Marquette University
Bachelor’s Degree
Awards & Badges


- Employee Benefits
- Employment Litigation
- Workers' Compensation




