The Peranakan Chinese () are an ethnic group defined by their genealogical descent from the first waves of Southern Chinese settlers to maritime Southeast Asia, known as Nanyang (Chinese: 南洋; pinyin: nán yáng; lit. 'Southern Ocean'), namely the British, Portuguese, and Dutch colonial ports in the Malay Peninsula and the Indonesian Archipelago, as well as Singapore. The Peranakan Chinese are often simply referred to as the Peranakans. Peranakan culture, especially in the dominant Peranakan centres of Malacca, Singapore, Penang, Phuket, and Tangerang, is characterized by its unique hybridization of ancient Chinese culture with the local cultures of the Nusantara region, the result of a centuries-long history of transculturation and interracial marriage.
Immigrants from the southern provinces of China arrived in significant numbers in the region between the 14th and 17th centuries, taking abode in the Malay Peninsula (where their descendants in Malacca, Singapore and Penang are referred to as Baba–Nyonya); the Southern Thailand (where their descendants are referred to as Baba-Yaya), primarily in Phuket, Trang, Phang Nga, Takua Pa, and Ranong; Terengganu (where their descendants are referred to as Cheng Mua Lang) and North Borneo from the 18th century (where their descendants in Sabah are also referred to as Sino-Natives). Intermarriage between these Chinese settlers and their Malay, Thai, Javanese, or other predecessors in the region contributed to the emergence of a distinctive hybrid culture and ostensible phenotypic differences. Through colonisation of the region, the impact and presence of the Peranakan Chinese spread beyond Nusantara. In Sri Lanka, the Peranakan Chinese went on to contribute to the development of the Sri Lankan Malay identity that emerged in the nation during Dutch rule.