Tanza, officially the Municipality of Tanza (Tagalog: Bayan ng Tanza), formerly known as Santa Cruz de Malabon, is a 1st class urban municipality in the province of Cavite, Philippines. According to the 2020 census, it has a population of 312,116 people. It has a land area of 95.59 km2, making it the third largest municipality by land area in the province.