Moot court is an extracurricular activity at many law schools in which participants take part in simulated court proceedings, usually involving drafting memorials or memoranda and participating in oral argument. The term "moot" traces its origins to Anglo-Saxon times, when a moot (gemōt) was a gathering of prominent men in a locality to discuss matters of local importance. The modern activity differs from a mock trial, as moot court usually refers to a simulated appellate court or arbitral case (appellate advocacy), while a mock trial usually refers to a simulated jury trial or bench trial (trial advocacy). Moot court does not involve actual testimony by witnesses, cross-examination, or the presentation of evidence, but is focused solely on the application of the law to a common set of evidentiary assumptions and facts to which the competitors are introduced. In most countries, the phrase "moot court" may be shortened to simply "moot" or "mooting." Participants are either referred to as "mooters" or "mooties".
Moot court and law review are the two key extracurricular activities in many law schools. Depending on the competition, students may spend a semester researching and writing the memorials, and another semester practicing their oral arguments, or may prepare both within the span of a few months. Whereas domestic moot court competitions tend to focus on municipal law such as criminal law or contract law, regional and international moot competitions tend to focus on subjects such as public international law, international human rights law, international humanitarian law, international criminal law, international trade law, international maritime law, international commercial arbitration, and foreign direct investment arbitration. Procedural issues pertaining to jurisdiction, standing, and choice of law are also occasionally engaged, especially in arbitration moots.