Ng (pronounced [ŋ̍]; English approximation often /ˈɪŋ/ or /ˈɛŋ/) or /ˈŋɛŋ/) is a Cantonese, Shanghainese and Hakka transliteration of the Chinese surnames / (Pinyin transliteration for Mandarin equivalent: Wú) and (Mandarin Wǔ) meaning "five". In Hokkien (Taiwanese) and Teochew, Ng corresponds to the surname / (Mandarin Huáng) meaning "yellow"; or to (Mandarin Ruǎn).
The surname is sometimes romanized as Ang, Eng, Ing and Ong in the United States and in Australia. Ng is sometimes romanized as or Wu even by people of Cantonese origin, such as John Woo. In Vietnam, the corresponding surname is Ngô. In Cambodia, the corresponding surname is Oeng. 吴 / 吳 (Wú) was the 10th most common Chinese surname in 2006 and was the 8th most common in 1990. In the Philippines, pronounced it as /nɑːŋ/.