Mandaluyong Liberation and Cityhood Day, observed in the city of Mandaluyong in the Philippines, commemorates its liberation from Japanese occupation on February 9, 1945, and its elevation to cityhood on February 9, 1994. This local holiday is celebrated every February 9 and marks significant historical events in Mandaluyong's development. The city, which was originally a barrio named San Felipe Neri, has a rich history dating back to the Spanish colonial period and has evolved into a major business and financial center in Metro Manila, housing important institutions like the Asian Development Bank and San Miguel Corporation. The day was officially designated as Mandaluyong Liberation and Cityhood Day in August 2000, and it serves as a reminder of the city's journey from a neighborhood to a highly urbanized city. The observance is specific to Mandaluyong and is not recognized outside of the city.