Cagayan de Oro City Charter Day is observed in Cagayan de Oro, Philippines, every June 15. This special non-working holiday commemorates the day in 1950 when Cagayan de Misamis was officially converted into a chartered city and renamed Cagayan de Oro. The city's name translates to "River of Gold," and it serves as the capital of Misamis Oriental in Northern Mindanao. The celebration marks the historical significance of the city, which has roots dating back to Spanish colonial times when it was first established as a settlement in 1622. Residents often engage in various activities to honor their city's heritage and achievements, reflecting on its evolution from a municipality to a highly urbanized city and a major business hub in the region.