Robert C. Smith, better known as Bob Smith (born 1941) is an American politician. Robert C. Smith may also refer to:
- Robert Charles Smith (born 1947), political science professor at San Francisco State University.
- Robert Chester Smith (1912-1975), American art historian.
- Robert Cross Smith (1795–1832), English astrologer.
- Robert Curtis Smith (1930–2010), American Piedmont blues singer, guitarist and songwriter.
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