The International Association for Forensic and Legal Linguistics (IAFLL), until 2021 called 'International Association of Forensic Linguists', is a professional organization consisting primarily of linguists working in fields related to the area of language and law, or forensic linguistics. Areas of expertise include (but are not limited to) authorship attribution, disputed confessions, trademark issues, legal language, etc. In addition to linguists, the association has members from other professions related to language and the law, particularly members of the legal profession. Currently, the president of the IAFL is Janet Cotterill (Cardiff University), and the vice-president is Ronald Butters (Duke University).

The IAFL holds biennial international conferences and edits the International Journal of Speech, Language and the Law (formerly Forensic Linguistics), a peer-reviewed journal that publishes articles on any aspect of forensic language, speech and audio analysis. The board of editors includes language experts; Ronald Butters, Diana Eades, Paul Foulkes and Peter French.