Katherine Mazaheri

Katherine Mazaheri is an experienced Oklahoma trial lawyer who represents employees and select employers in a wide range of employment law matters. Her practice includes litigation in state and federal courts, mediation, and representation before administrative agencies such as the Equal Employment Opportunity Commission (EEOC), U.S. Department of Labor (DOL), Oklahoma Employment Security Commission (OESC), and the Oklahoma Civil Rights Enforcement Division of the Oklahoma Attorney General’s Office.

Ms. Mazaheri has successfully handled complex employment disputes involving wrongful termination, sexual harassment and sexual assault, workplace discrimination based on race, age, gender, pregnancy, national origin, disability, and sexual stereotyping, as well as retaliation claims. Her experience also includes wage and hour violations, medical leave disputes, non-compete and non-solicitation agreements, confidentiality issues, employee handbook and policy violations, and breaches of employment contracts and severance agreements. She regularly advises clients both plaintiffs and employers from the administrative stage through mediation and trial in both state and federal courts.

For nearly two decades, Mazaheri Law Firm has built a strong reputation for advocating in cases that challenge workplace injustice and produce meaningful recoveries for clients. As part of her employment law practice, Ms. Mazaheri also counsels and trains employers on workplace compliance, including hiring practices, discipline and termination procedures, employee handbooks, drug and alcohol testing, anti-discrimination and anti-harassment policies, employment contracts, severance agreements, and confidentiality agreements. She has provided workplace training to more than 400 employees, educated tribal employees on sexual harassment and workplace rights, and has delivered Title VII compliance training to local film and movie production crews as a prerequisite for insurance coverage.

Ms. Mazaheri is a frequent speaker and legal educator. From 2019 through 2022, she presented continuing legal education programs for the Oklahoma Employment Lawyers Association, the Oklahoma Bar Association Labor and Employment Law Section, the Oklahoma Bar Association Women in Law Conference, and the Oklahoma City University School of Law Alumni Association. Through the years, she has had the opportunity to continue education through publications in the Oklahoma Bar Journal, The Briefcase, and other online publications. In 2025, she also served as a panelist for a continuing legal education program for the OBA Labor and Employment Section and OELA focused on best practices in mediation.

In addition to her employment law practice, Ms. Mazaheri represents clients in Oklahoma family law matters, including divorce and child-related issues. She is known for guiding individuals and families through difficult transitions with discretion and care, while prioritizing the best interests of minor children and protecting her clients’ privacy and long-term well-being.

A breast cancer survivor, Ms. Mazaheri is deeply committed to philanthropy and supports organizations focused on cancer awareness, research, and patient care. She has served in leadership roles within the legal community, including as Chair of the Oklahoma Bar Association’s Labor & Employment Law Section and Chair of the Oklahoma City University School of Law Alumni Association. She currently manages a thriving law practice in northwest Oklahoma City and, outside of work, enjoys spending time with her four children and the family dog, Harley.

Bar Admissions

• Oklahoma
• U.S. District Court Western District of Oklahoma
• U.S. District Court Northern District of Oklahoma
• U.S. District Court Eastern District of Oklahoma
• U.S. Court of Appeals 10th Circuit

Education

• J.D., Oklahoma City University School of Law
• B.A., University of Oklahoma

Honors and Awards

• Ada Lois Sipuel Fisher Diversity Award, Oklahoma Bar Association, 2022
• 2019-2023 AV Preeminent™Rating by Martindale-Hubbell® - Martindale-Hubbell®'s oldest and most well-respected legal rating service, AV Preeminent™ is the highest rating of its kind
• 2016, 2017, & 2020-2023 Super Lawyers® Rising Stars - Only 5% of attorneys in each state and practice area annually receive the honor of being included in this list.
• Leadership in Law Award, 2021
• 50 Women Making a Difference Honoree, The Journal Record, 2021
• Avvo "Superb" 9.4/10 - This attorney rating service aims to recognize individual lawyers for their skill, professionalism, and experience. 9.4/10 "Superb" is the highest rating.
• Geary L. Walke Briefcase Award, Oklahoma County Bar Association, 2021

Professional Accolades

• Oklahoma County Bar Association, Board of Directors, 2020-2023
• Oklahoma Bar Association, Family Law & Employment Law Section, Chair
• Delegate to the Oklahoma Bar Association House of Delegates
• Oklahoma City University School of Law Alumni Association, Special Events Co-chair
• Oklahoma Employment Lawyers Association, Member
• United Way Board Serve, 2014-2015
• Oklahoma Real Estate License, 2003
• OCU Law Alumni Association Board of Directors - Chair 2025

Publications

• Sexual Harassment and Respect in the Legal Workplace2023
• Intersectionality: Understanding a New Subcategory of Discrimination Under Title VII2022
• Top 5 Ways to Mitigate a Charge of Discrimination2022
• The Right to Bare Arms, The Briefcase, Oklahoma County Bar Association2021
• There’s Nothing Sexy About Sexual Harassment, The Briefcase, Oklahoma County Bar Association2021
• Everything you need to know about Stepparent Adoption, Oklahoma City Mom2020
• Know Your Rights: Employment in a Pandemic, Oklahoma City Mom2020
• Navigating Divorce: What Your Lawyer Wants You to Know, Oklahoma City Mom2020
• What’s Sex Got to Do With It? The Landmark Cases Before the Supreme Court That Broadened the Meaning of 'Sex'2020
• Keeping Your Job When You Have Kids Going Back to School: Employee Rights Under the FFCRA in the Time of Covid, Oklahoma City Mom2020
• The Goal to Become Equal: The Women’s National Soccer League and the Equal Pay Game, OBJ Vol. 91, No. 82020
• Know Where to Go: Domestic Violence Awareness Month, Oklahoma City Mom2020
• 7 Small but Significant Ways to Change the World, The Briefcase, Oklahoma County Bar Association2020
• Mandatory Employee Vaccinations: Can Employers Require the COVID-19 Vaccination of Employees?, The Briefcase, Oklahoma County Bar Association2020

• When Harassment Crosses a Line: Exploring the Trafficking Victims Protection Act as a Remedy in the Workplace, OBJ Volume 96, No. 6 (8/2025).

• Sexual Harassment and Respect in the Legal Workplace, OBJ Volume 94, No. 7 (9/2023).
• Intersectionality: Understanding a New Subcategory of Discrimination Under Title VII, OBJ Volume 93, No. 2 (2/2022).
• The Right to Bare Arms, The Briefcase, Oklahoma County Bar Association (2/2022).