John H. Mowbray

Las Vegas Office Managing Partner
P 702.408.3410 | F 702.938.8648
Spencer Fane attorney John Mowbray


A distinguished member of Nevada’s legal community and second-generation lawyer in the state, John Mowbray concentrates his practice on commercial litigation as well as real estate and ethics and professional responsibility.

During his 40-year career, John has assisted clients with issues facing businesses of all sizes. He has helped business owners adeptly navigate everything from contracts and lawsuits to personal estates and trusts.

John is the Managing Partner of the Spencer Fane Las Vegas office, and is a distinguished member of Nevada’s legal community. As a past president of the State Bar of Nevada and Clark County Bar Association, he is well-regarded throughout the region for his knowledge of law and high level of dedication to client service.

John draws on this experience and heavy involvement in the professional legal community to better inform his peers and colleagues of best legal practices. Clients value John’s legal knowledge, ability to assimilate complex facts, and commitment to help them achieve desired results.



  • University of Notre Dame Law School, 1976 (J.D.)
  • University of Notre Dame, 1973 (A.B.), cum laude

Bar Admissions

  • California
  • Nevada

Court Admissions

  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. District Court for the District of Nevada
  • U.S. Supreme Court

  • Mob Museum, Board of Directors
  • Let Freedom Ring, Inc., Board of Directors, Chair
  • Boy Scouts of America Las Vegas Area Council, Board of Directors; Former President
  • The Outside Las Vegas Foundation, Former Trustee
  • Southern Nevada Conservancy, Board of Directors, Former Member
  • Red Rock Canyon Interpretive Association, Board of Directors, Former Member
  • City of Las Vegas’ Post Modern Museum, Executive Committee, Former Member
  • Notre Dame Club of Las Vegas, Board of Director; Former President
  • Bishop Gorman High School, Las Vegas, Nevada, Former Board of Advisor
  • Community College of Southern Nevada, Former Adjunct Professor
  • Equestrian Order of the Holy Sepulcher, Diocese of Las Vegas, Former Councillor
  • National Eagle Scout Association, local chapter, Past President
  • Catholic Charities of Southern Nevada, Board of Directors; Former President
  • Catholic Community Services of Nevada, Former Trustee
  • National Conference for Community and Justice, Board of Directors, Former Member

  • Liberty Bell Award Recipient, Clark County Bar Association, 2024
  • Martindale-Hubbell, AV Preeminent
  • Best Lawyers in America, Commercial Litigation, 2010-2024; Construction Law, 2018-2024;  Litigation – Construction, 2018-2024
  • Man Enough To Be a Girl Scout Recipient, Girl Scouts of Southern Nevada, 2023
  • The John H. Mowbray Eagle Scout Recognition Class of 2022, Las Vegas Area Council, BSA
  • Inaugural Recipient of National Outstanding Eagle Scout Award, Las Vegas Area Council, BSA, 2019
  • Benchmark Litigation, Local Litigation Star, 2012-2017
  • Mountain States Super Lawyers, Business Litigation and General Litigation, 2009-2022
  • Mountain States Super Lawyers, Top 100 Attorneys, 2012-2014
  • Nevada’s Best Lawyers, 2013
  • Vegas Inc., Top Lawyers, 2013
  • Catholic Charities of Nevada, Heart of Hope Award, 2012
  • Clark County Law Foundation, Champion of Justice through Service Award, 2016
  • State Bar of Nevada, Judge Lloyd D. George Model of Professionalism Award, 2009
  • Boy Scouts of America, Las Vegas Area Council, Silver Beaver Award, 2004
  • Bishop Gorman High School, Diocese of Las Vegas, Order of Excalibur, 2002
  • Recipient of Proclamation, Gov. Kenny Guinn, John H. Mowbray Day, June 12, 2002
  • Las Vegas Chamber of Commerce Community Achievement Award, Humanitarian Category, 2001
  • National Conference for Community and Justice, Community Hero, 2000
  • Catholic Charities of Southern Nevada, Person of the Year, 2000
  • Pro Ecclessia Et Pontifice, His Holiness St. Pope John Paul II, 1999
  • Clark County Pro Bono Project, Distinguished Service Award, 1999
  • Person of the Year, Notre Dame Club of Las Vegas, 1991

  • State Bar of Nevada
  • State Bar of California
  • Clark County Bar Association
  • American Bar Association
  • Supreme Court of Nevada Commission on the Amendment to the Nevada Code of Judicial Conduct

  • “Industry Focus: Attorneys,” Nevada Business Magazine, April 1, 2016
  • Clifton Young, A Distinguished Nevadan For All Reasons
  • Comments on Pope Francis Visit to the U.S., KNPR