Defamation Expert Witnesses

defamation expert testimony

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Defamation claims often encompass internet defamation, false light, public relations, crisis management/crisis communications, social media defamatory statement, and online reputation management. A defamation expert witness needs to not only have subject matter expertise, but must also possess the ability to provide testimony in such a manner that a jury and judge can understand the evidence. In high profile cases, or litigation involving a significant financial stake, a law firm may require a defamation law specialist with prior expert witness testimony experience. 

Defamation is a false statement about another person that could harm their reputation. Defamation can also cause emotional distress. Libel is written defamation, and slander is verbal defamation. A few notorious libel and defamation case decisions include:

Litigation support by a defamation expert witness could include arbitration, expert report preparation, expert opinion, economic damage/valuation assessment, and courtroom testimony. In addition, clients may seek a defamation expert for pre-litigation consultation.

Representing the plaintiff or defendant, top law firms call on Cahn Litigation Services when the need arises for an expert witness to support a defamation of character case. The firm has the many years of experience required to consistently provide expert candidates with the ideal balance of expertise and testimony experience.

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Defamation Expert Witness - Representative Bios

Please Note: All Cahn Litigation expert witness searches are customized to attorneys' precise specifications and preferences. Attorneys are encouraged to discuss search parameters with a Cahn search specialist.

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The below expert witness bios represent a small fraction of those Defamation experts known by Cahn Litigation Services. These bios are provided to give lawyers a sense of the Defamation landscape.

Expert Witness #252452

This expert is an independent consultant in matters of online reputation management, social media, infringing domains, defamation, cybersquatting, and other internet and search engine optimization-related issues. This expert's clientele ranges from publicly traded corporations to local start-ups. This expert is well known and a frequent speaker at industry conferences and often writes for industry news sites. Before becoming an independent consultant, this expert held positions in industry. This expert is an experienced expert witness, having served on several cases involving online defamation and simultaneously postings via various social media platforms. This expert knows what sorts of analytics will need to be requested in discovery to ascertain more precise numbers going well beyond the visible numbers of "likes", comments and shares.

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Expert Witness #218652

This expert is an experienced litigation expert with many years of senior level Fortune 100 experience and has been retained by many reputable firms to conduct consumer research and to provide expert testimony. This expert has provided expert testimony in more than 70 legal cases: Lanham Act - Trademark, Trade Dress, Patent; Defamation; Commercial Reasonableness; Personal Injury - Retail Merchandising; Misleading Advertising; Misleading Packaging; Damages; Fraud; and more. State, Federal, Class Action, Civil, Criminal, Courtroom and Arbitration Qualified, this expert has opined across a range of issues including trademark confusion, channel strategy, false advertising (including online advertising), branding and marketing, contracts, survey rebuttals, retail strategy, and trade dress confusion. This expert has been retained for criminal and civil cases regarding individuals, corporations, and class action lawsuits. This expert has created, developed, fielded, analyzed, and reported on thousands of studies. In this expert's work providing expert testimony, this expert has conducted surveys on genericness, likelihood of confusion, secondary meaning, false advertising, dilution and more as it relates to trade dress, trademarks, and patents. This expert has provided about twenty depositions in person, via video, and via telephone. This expert has testified in court nearly ten times in cases involving: Misleading Advertising; Consumer Confusion; Secondary Meaning; Fraud; Commercial Reasonableness; Brand and Reputation Defamation. This expert received an MBA and has experience in branding, management, research and strategy. Early in this expert's career, this expert spent years working in the areas of national brand management and promotional marketing. Once the Chief Marketing Officer for a major retail chain, this expert owns and manages a strategic marketing consultancy where this expert works directly with senior executives of many Fortune 1000 corporations providing a wide range of advanced research expertise including design, analytics and advanced statistics along with case consulting across a range of industries.

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Expert Witness #252466

This expert is the founder of a teaching/corporate training company centered around the skills for Search Engine Optimization, Google AdWords/Pay-Per-Click and Social Media Marketing. This expert teaches these skills part-time for a continuing studies program. In addition, this expert has expert witness experience, having testified in both State and Federal Court, supporting both plaintiff and defendant, in defamation, trademark matters.

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Expert Witness #257554

This expert has strong experience as an expert consultant on issues related to internet reputation, social media, internet defamation and rehabilitating a digital presence. This expert is a frequent presenter at conferences and private briefings globally on the subjects of SEO and Online Reputation Management. This expert founded a firm providing education on online presence and online reputation management to governments and corporations. This expert is well-published with a list of publications on SEO and ORM (Online Reputation Management).

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Expert Witness #217512

This expert heads an internationally recognized consultancy providing Expert Witness Services to law firms involved in litigation related to SEO (Search Engine Optimization) technology or business. This expert has been working in the areas of computing, Software development, Cyberspace, Internet/Ecommerce, SEO, and PPC.


Internet Technology

Ecommerce & Conversions

Online Marketing

Search Engine Optimization (SEO)

Social Networking

Online Advertising/Pay Per Click

Web Development


Internet-Technology Patents, Inter Partes Re-exams, CBM/Post-Grant Challenges


Ecommerce-related Unfair Business Practices

Domain Names

Online Defamation/Online Libel

Internet Fraud


Founder of an eBusiness Service Provider

Founder of an Internet-enabled publishing firm

VP of Web Solutions for a national ISP

VP of Marketing for a Web-applications company

ecommerce consultant, VP of Business & Corp. Development for e-commerce startup

Extensive authorship related to Internet, technology

working in all areas of online business


Dozens of Internet & Technology books

Hundreds of Internet & Technology newspaper & magazine articles

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