Titirangi is a suburb of West Auckland in the Waitākere Ranges local board area of the city of Auckland in northern New Zealand. It is an affluent, residential suburb located 13 kilometres to the southwest of the Auckland city centre, at the southern end of the Waitākere Ranges. In the Māori language "Titirangi" means "hill reaching up to the sky".

West Auckland is one of the major geographical areas of Auckland, the largest city in New Zealand. Much of the area is dominated by the Waitākere Ranges, the eastern slopes of the Miocene era Waitākere volcano which was upraised from the ocean floor, and now one of the largest regional parks in New Zealand. The metropolitan area of West Auckland developed between the Waitākere Ranges to the west and the upper reaches of the Waitematā Harbour to the east. It covers areas such as Glen Eden, Henderson, Massey and New Lynn.