Grant S. Cowan

T 513.651.6745
F 513.651.6981
301 East Fourth Street
Great American Tower, Suite 3300
Cincinnati, Ohio 45202

Grant is a member of the Business Litigation Practice Group. He has a broad litigation practice which includes the prosecution and defense of contract disputes, business torts and unfair competition claims. Grant also frequently represents companies and their directors and officers in securities claims and derivative actions. Grant is a former President of the Cincinnati/Northern Kentucky Chapter of the Federal Bar Association and has been listed in The Best Lawyers in America® for Commercial Litigation each year since 2007.


Grant has successfully tried a number of cases before juries, judges, and arbitrators in Ohio, Kentucky and a number of other states around the country. Very recent examples include the following:

  • Obtained defense verdict in multi-week jury trial between two large manufacturing companies involving claims of alleged misappropriation of trade secrets and tortious interference with business relations.
  • Successfully prosecuted multi-million dollar breach of contract claims in arbitration involving large supply agreement.
  • Obtained dismissal of $75 million dollar claim for alleged breach of guaranty agreement; decision affirmed on appeal to the Sixth Circuit Court of Appeals.
  • Obtained defense verdict in trial between competing companies in tortious interference with contract action.
  • Successfully defended physician in arbitration proceeding against claims of securities fraud in connection with investments in medical insurance company.

Highlights & Recognitions

  • Selected for inclusion in Ohio Super Lawyers®, 2007-2019
  • The Best Lawyers in America®, 2007-2019
  • AV® Rated, Martindale-Hubbell®

Memberships & Affiliations

  • The Florida Bar
  • Ohio State Bar Association

Press Releases

Civic & Charitable Organizations

  • Federal Bar Association, Past President, Cincinnati/Northern Kentucky Chapter
  • Cincinnati Nature Center, Board of Trustees, former Chair
  • Leadership Cincinnati Class XXII, Graduate
  • Babies' Milk Fund Children and Prenatal Clinics, Former President Board of Trustees, 1996-1999

Other Contact Info




Fran Thurmond
T 513.651.6140