| Sibiu | Sybin |
| Sibutramina | Sibutramina |
| Sibéria | Syberia |
| Sicherheitsdienst | Sicherheitsdienst |
| Sichuan | Syczuan |
| Siciliana | Siciliana |
| siciliano | sycylijski |
| Sicião | Sykion |
| Sick of It All | Sick Of It All |
| sicofanta | lizus |
| Sicília | Sycylia |
| sicómoro | jawor |
| sicômoro | jawor |
| Sid Meier | Sid Meier |
| Sid Vicious | Sid Vicious |
| Sid Wilson | Sid Wilson |
| SIDA | AIDS |
| Sidarta | Siddhartha |
| Siddhartha Gautama | Budda Siakjamuni |
| Sideriano | Sider |
| Siderita | Syderyt |
| Sideritis | Gojnik |
| siderurgia | przemysł wyrobów żelaznych |
| Siderurgia de Völklingen | Huta żelaza w Völklingen |
| Sideways | Bezdroża |
| Sidi Bel Abbes | Sidi Bu-l-Abbas |
| Sidi Bou Said | Gubernatorstwo Sidi Bu Said |
| Sidney | Sydney |
| Sidney Crosby | Sidney Crosby |
| Sidney Govou | Sidney Govou |
| Sidney Poitier | Sidney Poitier |
| Sidney Sheldon | Sidney Sheldon |
| Sidom | Sydon |
| Sidon | Sydon |
| sidra | jabłecznik |
| Sidur | Sidur |
| Sidônio Apolinário | Sydoniusz Apolinary |
| Siebel Systems | Siebel |
| Siedlce | Siedlce |
| Sieg heil | Sieg heil |
| Siegbert Tarrasch | Siegbert Tarrasch |
| Siegelsbach | Siegelsbach |
| Siegen | Siegen |
| Siegen-Wittgenstein | Powiat Siegen-Wittgenstein |
| Siegenburg | Siegenburg |
| Siegessäule | Siegessäule |
| Siegfried | Zygfryd |
| Siegfried de Dubhe | Orion |
| siemens | simens |
| Siemens AG | Siemens AG |
| Siena | Siena |
| Sienito | Sjenit |
| Sienna Guillory | Sienna Guillory |
| Sienna Miller | Sienna Miller |
| Sieradz | Sieradz |
| Sierra Madre | Pasma górskie na świecie |
| Sierra Madre del Sur | Sierra Madre Południowa |
| Sierra Madre Oriental | Sierra Madre Wschodnia |
| Sierra Nevada | Sierra Nevada |
| Sierra Nevada de Lagunas Bravas | Sierra Nevada |
| Sierre | Sierre |
| Siete Aguas | Setaigües |
| sievert | siwert |
| Sif | Sif |
