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Calfee Litigation Practice Group Co-Chair and Partner Colleen M. O’Neil has been selected for membership to In Counsel With Women, a professional organization whose membership is by invitation only to a limited number of women annually.

Since 2003, In Counsel With Women has provided programs and networking opportunities for executive women to grow and have a positive impact on their communities. Its network includes top women professionals in Northeast Ohio from both profit and nonprofit organizations.

Colleen has extensive experience helping a range of clients resolve a variety of complex business disputes in federal and state courts nationwide. She joined Calfee in 1998, began serving as Vice Chair of the firm’s Litigation practice group in 2019, and as Co-Chair in 2021. Colleen serves as a member of Calfee’s Diversity, Equity & Inclusion Committee.

Colleen has been recognized by The Best Lawyers in America® in the field of Commercial Litigation since 2021, and in Litigation – Trusts and Estates in 2024.

Colleen also has been named to the Ohio Super Lawyers list since 2012, most recently in Business Litigation in 2024. She has additionally been included in the following Super Lawyers lists: Top 100 Attorneys in Ohio, Top 50 Women Attorneys in Ohio, Top 50 Attorneys in Cleveland, and Top 25 Women Attorneys in Cleveland.

Colleen was inducted to the 2022 Class of the Cleveland State University College of Law Hall of Fame. She received the YWCA of Greater Cleveland “Women of Professional Excellence Award” in 2010.

Active in the legal community Colleen serves on Cleveland State University College of Law’s Board of Visitors and Cleveland State University College of Law’s Alumni Association Board. She is a Founding Member and Former Vice President of the Irish American Law Society of Cleveland, and she is a member of the Cleveland Metropolitan Bar Association, the Ohio State Bar Association, and the American Bar Association. She is a member of the ABA’s Litigation Section.

Colleen serves as a Board Member and Chair of the Governance Committee of Magnificat High School, where she served as Chair of the Board of Directors from 2017-2022.

She is a member of the Leadership Cleveland Class of 2016.


Media Contact

Susan M. Kurz
Chief Marketing & Client Development Officer
216.622.8346 (office)
513.502.8950 (mobile)

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