Kosrae Liberation Day is a significant holiday celebrated in Kosrae, one of the four states forming the Federated States of Micronesia. This holiday takes place yearly on September 8th. It commemorates the liberation of the island from Japanese control during World War II. This event has deep historical and emotional significance for the community, as it represents a turning point in their history.

The United States forces liberated Kosrae in 1945, marking the end of a brutal occupation that lasted almost three decades. The day is a celebration of freedom and a recognition of the sacrifices made by past generations. It provides an opportunity for the people of Kosrae to honor the memory of the fallen, express gratitude to their liberators, and reaffirm their commitment to peace. Parades, flag-raising ceremonies, and war remembrance services are among the many activities carried out during the day.

Along with the solemn events marking the island’s liberation, Kosrae Liberation Day also highlights the unique culture and traditions of the region. The island's inhabitants celebrate with festive events including local music and dance performances, traditional sports, and communal feasts featuring indigenous cuisine. The day not only honors the past but also celebrates the resilience of the Kosraean people and their hopes for a peaceful and prosperous future. Many also use this opportunity to teach the younger generations about the history and significance of this day.