John has more than 35 years of experience in high-stakes, enterprise-threatening corporate and commercial litigation and has tried or arbitrated more than 65 matters to conclusion.
Most recently, John led a Wilson Sonsini team in obtaining a complete defense verdict before a Los Angeles jury in a case in which the plaintiff sought $1.3 billion in damages; a directed verdict in a trademark case on behalf of a defendant with the same name as the plaintiff in the Western District of Texas; and a multimillion-dollar verdict in a breach of contract case in the Eastern District of California (Fresno). He has recovered more than $1 billion for clients to date.
John has tried cases in areas ranging from intellectual property and trade secrets, securities and professional liability, and entertainment and employment law to human rights.
John P. Flynn is a veteran trial lawyer. He has tried cases covering virtually every aspect of commercial litigation, including intellectual property and trade secrets, contract law, securities and professional liability, environmental law, entertainment and employment law, and human rights. In June 2025, John was recognized as “Litigator of the Week” by The American Lawyer for Wilson Sonsini’s representation of Google in a breach of contract/trade secret jury trial in Los Angeles.
Prior to joining the firm's San Francisco office, John was a partner and co-founder of the litigation firm McLeod, Moscarino, Witham & Flynn in San Francisco. He previously was a partner at Latham & Watkins and Dewey Ballantine, after beginning his career at Skadden, Arps, Slate, Meagher & Flom.
John P. Flynn is a veteran trial lawyer. He has tried cases covering virtually every aspect of commercial litigation, including intellectual property and trade secrets, contract law, securities and professional liability, environmental law, entertainment and employment law, and human rights. In June 2025, John was recognized as “Litigator of the Week” by The American Lawyer for Wilson Sonsini’s representation of Google in a breach of contract/trade secret jury trial in Los Angeles.
Prior to joining the firm's San Francisco office, John was a partner and co-founder of the litigation firm McLeod, Moscarino, Witham & Flynn in San Francisco. He previously was a partner at Latham & Watkins and Dewey Ballantine, after beginning his career at Skadden, Arps, Slate, Meagher & Flom.