Carl J. Mayer (born April 23, 1959 in Brookline, Massachusetts) is an American lawyer, politician, author, public speaker and consumer advocate. He is the founder of the law firm Mayer Law Group LLC, as well as a former elected member of the Township Committee in Princeton, New Jersey. Mayer is best known for taking on political corruption and corporate lobbyists and was profiled by the CBS news program 60 Minutes for those efforts.