Suin
# Suin

Suin may refer to:

* Suin, Rajasthan, a village in Rajasthan, India
* Suin, Saône-et-Loire, a commune in the French region of Bourgogne
* Sudanese Universities Information Network, a national research and education network

## Korean rail lines

* Suin Line (1937–1945), a narrow gauge line of the Chōsen Railway in Gyeonggi Province
* Suin Line, a metro line of the Seoul Metropolitan Subway serving the Seoul Capital Area, active 2012–2020
* Suin–Bundang Line, a commuter rail service of the Seoul Metropolitan Subway system, opened in 2020
