Nicholas Diamand is a partner in the New York City office of Lieff Cabraser Heimann & Bernstein, LLP, among the leading plaintiffs’ class action law firms in the United States. Nick has represented or currently represents shareholders in derivative actions involving Fox Corp., Tyson Foods, Boeing, and Wells Fargo (the latter two resulting in record-setting settlements), and in securities and financial fraud litigation against AIG, Bank of America, and Facebook. Nick successfully acted for consumers in digital privacy litigation against Google, Facebook, and LinkedIn, and on behalf of children and their parents against Disney, Viacom, and other online game and app producers (leading to industry-wide changes to child-directed tech). Internationally, Nick’s work includes proceedings against Danske, Facebook, Google, Petrofac, Steinhoff, and Volkswagen, as well as Lieff Cabraser’s representation of over 1,500 hemophiliacs worldwide, or their survivors, who contracted HIV and/or HCV from contaminated and defective blood factor produced by American pharmaceutical. Nick is a qualified English solicitor, and, prior to joining Lieff Cabraser, practiced at Herbert Smith’s London and Hong Kong offices. He clerked for the Honorable Judge Edward R. Korman of the Eastern District of New York, and is a graduate of Columbia Law School, the College of Law, and Columbia University. He has recently presented papers or spoken on academic panels relating to international class action litigation in England, Israel, the Netherlands, South Africa, and the U.S. Nick is on the Advisory Board of the Civil Justice Research Institute at the University of California, Berkeley.

Nicholas Diamand is a partner in the New York City office of Lieff Cabraser Heimann & Bernstein, LLP, among the leading plaintiffs’ class action law firms in the United States. Nick has represented or currently represents shareholders in derivative actions involving Fox Corp., Tyson Foods, Boeing, and Wells Fargo (the latter two resulting in record-setting settlements), and in securities and financial fraud litigation against AIG, Bank of America, and Facebook. Nick successfully acted for consumers in digital privacy litigation against Google, Facebook, and LinkedIn, and on behalf of children...

Publications

Class Actions Law Guide

Author of the United States chapter in the Class Actions Law Guide , published 5 May 2026 .