Defamation is a common-law claim for liability that encompasses "libel," which is the written form, and "slander," which is the oral form. School principals can be plaintiffs or defendants in defamation suits. Relevant case law provides illustrations of the various elements of defamation for both roles of the principal. Court decisions involving other school officials, such as superintendents, are included to provide a more complete administrative picture. Unlike lawsuits based upon alleged constitutional violations, defamation suits may be brought against private and public school administrators alike. Advice is offered principals and other administrators regarding their conduct in potential defamation litigation both as plaintiffs and/or defendants. (MLF)