Balaiah or Balayya is a surname. Notable people with the surname include:
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Brahmanapalli Balaiah (1930–2019), Indian politician
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M. Balayya (1930–2022), Indian actor, writer, and director in Telugu cinema
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T. S. Balaiah (1914–1972), Indian actor in Tamil cinema
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Nandamuri Balakrishna (born 1960), Indian actor, nicknamed Balayyahdhhd
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