The Republic of China Navy (ROCN; Chinese: 中華民國海軍; pinyin: Zhōnghuá Mínguó Hǎijūn), also called the ROC Navy and colloquially the Taiwan Navy, is the maritime branch of the Republic of China Armed Forces (ROCAF).

The service was formerly commonly just called the Chinese Navy during World War II and prior to the ROC’s retreat from the mainland. While still sometimes used especially in domestic circles, it is now not as often used internationally due to the current ambiguous political status of Taiwan and to avoid confusion with the People’s Liberation Army Navy of the People’s Republic of China (PRC).