Sun Xin may refer to:
- Sun Xin (Three Kingdoms), member of the Sun clan who ruled Eastern Wu (229–280)
- Sun Xin (Water Margin), a Chinese literary character
- Sun Xin (physicist), a member of the Chinese Academy of Sciences
- Sun Xin, member of the GNZ48 Chinese idol girl group
This disambiguation page lists articles associated with the title Sun Xin.
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