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
If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: