S. K. Sinha may refer to:

• Shri Krishna Sinha (1887–1961), the first chief minister of the Indian state of Bihar (1946–61)
• Srinivas Kumar Sinha (1926–2016), Indian army, later ambassador to Nepal, later governor of Assam and Jammu and Kashmir
• Surendra Kumar Sinha (born 1951), Chief Justice of Bangladesh

This disambiguation page lists articles associated with the title S. K. Sinha.
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