The FIRST LEGO League Challenge (formerly known as FIRST LEGO League) is an international competition organized by FIRST for elementary and middle school students (ages 9–14 in the United States and Canada, 9–16 elsewhere).

Each year in August, FIRST LEGO League Challenge teams are introduced to a scientific and real-world challenge for teams to focus and research on. The robotics part of the competition involves designing and programming Lego Education robots to complete tasks. The students work out a solution to a problem related to the theme (changes every year) and then meet for regional, national and international tournaments to compete, share their knowledge, compare ideas, and display their robots.