Model United Nations (MUN) is a simulation of the UN where Secondary students represent delegates of the committees and commissions of this international organization. Its objective is for participants to develop research, debate, and public speaking skills while they learn about and provide solutions on global issues.

In 2017 and 2018, IC MUN Club members took part in several national and international conferences where they interacted with students from other schools and debated the same topics the United Nations has tackled in its assemblies. They had the chance to raise awareness on international espionage, privacy in a digital era, alternative energies, nuclear weapons and the civil war in Syria.