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Seroa, or ǃUi, is a ǃKwi language or dialect of South Africa that went extinct in the 19th century. It was spoken in the area of Bloemfontein. Seroa is the Sesotho name, literally "language of the Baroa (Bushmen)"; the people called themselves ǃUi (that is, ǃKwi), which just means 'people'. The language is labeled SIId in Dorothea Bleek's classification.
Seroa was closely related to ǁŨǁʼe and Boshof ǃUi, but analysis of the recorded data has not been enough to determine the boundary between language and dialect.