- Sub Mint NC, Antioch on the Orontes, ancient Syria3
- Sub Mint NC, Asia2
- Sub Mint NC, Cyzicus, ancient Mysia3
- Sub Mint NC, Eastern Mint1
- Sub Mint NC, Mediolanum1
- Sub Mint NC, Southern Mint1
- Sub Mint NC, Ticinum2
- Sub Mint NC, ancient Rome10
- Sub Mint R, ancient Rome1
- Sub Mint RH, Alexandria1
- Sub Mint RH, Corduba (ancient place)1
- Sub Mint RH, ancient Rome12
- Sub Mint T, ancient Rome16
- Susa (ancient place), Persia1
- Susanville, Lassen County, California2
- Suzhou, Jiangsu province, China2
- Sweden1
- Switzerland2
- Sybaris (ancient city), Magna Graecia2
- Syracuse (ancient colony)28