Cabuyao Cityhood Day, observed in Cabuyao, Laguna, Philippines, is celebrated every August 4 to commemorate the city's conversion from a municipality to a city in 2012. This special non-working holiday marks the anniversary of a plebiscite in which nearly 90% of voters supported the cityhood, making Cabuyao the 142nd city in the Philippines. The city's name is derived from "kabuyaw," the local term for the kaffir lime tree, and it is recognized as "The City of Modern Factories" due to its numerous industrial establishments. Historically, Cabuyao was a center of trade before Spanish colonization began in 1570, and it later played a role in significant historical events, including the Philippine Revolution and the American occupation. The celebration of Cabuyao Cityhood Day serves as a reminder of the city's rich history and development.