The John H. Jackson Moot Court Competition. is an international moot court competition on WTO law. The competition takes place on a yearly basis, with its first edition dating back to 2002. The competition was formerly known as ELSA Moot Court Competition on WTO but has been renamed in 2018 after the American professor of law John Howard Jackson.

Moot court is a co-curricular activity at many law schools. Participants take part in simulated court or arbitration proceedings, usually involving drafting memorials or memoranda and participating in oral argument. In many countries, the phrase "moot court" may be shortened to simply "moot" or "mooting". Participants are either referred to as "mooters" or, less conventionally, "mooties".