| 斯大林 | Sī dà lín | Joseph Stalin (1879-1953), Soviet dictator |  |
| 斯蒂芬 | Sī dì fēn | Stephen or Steven (name) |  |
| 斯坦福 | Sī tǎn fú | Stanford (University) |  |
| 斯诺克 | sī nuò kè | snooker (loanword) |  |
| 斯巴达 | Sī bā dá | Sparta |  |
| 斯坦利 | Sī tǎn lì | Stanley (name) |  |
| 斯拉夫 | Sī lā fū | Slavic |  |
| 斯柯达 | Sī kē dá | Škoda, Czech Republic car manufacturer, a subsidiary of Volkswagen Group |  |
| 斯特恩 | Sī tè ēn | Stern (name) |  |
| 斯巴鲁 | Sī bā lǔ | Subaru |  |
| 斯蒂文 | Sī dì wén | Steven (name) / Simon Stevin (1548-1620), Flemish engineer and mathematician, played a key role in introducing the decimal system to Europe |  |
| 斯宾塞 | Sī bīn sè | Spencer or Spence (name) |  |
| 斯当东 | Sī dāng dōng | Staunton (name) / Sir George Staunton, 1st Baronet, the second-in-command of the Macartney Mission of 1793 |  |
| 斯哥特 | Sī gē tè | Scott (name) |  |
| 斯捷潘 | Sī jié pān | Stepan or Stefan (name) |  |
| 斯考特 | Sī kǎo tè | Scott (name) |  |
| 斯雷姆 | sī léi mǔ | Syrmia |  |
| 斯诺登 | Sī nuò dēng | Edward Snowden (1983-), American surveillance program whistleblower |  |
| 斯佩林 | sī pèi lín | Spelling (e.g. Spelling Entertainment Group) |  |
| 斯佩罗 | Sī pèi luó | Spero (surname) |  |
| 斯泰西 | Sī tài xī | Stacy (name) |  |
| 斯坦顿 | Sī tǎn dùn | Stanton (name) |  |
| 斯坦佛 | Sī tǎn fó | Stanford (name) / Stanford University, Palo Alto, California |  |
| 斯坦因 | Sī tǎn yīn | Stein (name) / Marc Aurel Stein (1862-1943), Hungarian-born British archaeologist known for his expeditions to Central Asia |  |
| 斯塔西 | Sī tǎ xī | Stacy (name) |  |
| 斯托纳 | Sī tuō nà | Stoner (surname) |  |
| 斯万人 | sī wàn rén | Svanetians |  |
| 斯瓦特 | Sī wǎ tè | Swat province in Pakistani Northwest Frontier |  |
| 斯沃琪 | Sī wò qí | Swatch (Swiss brand) |  |
| 斯里兰卡 | Sī lǐ lán kǎ | Sri Lanka / (formerly) Ceylon |  |
| 斯洛伐克 | Sī luò fá kè | Slovakia (officially, since 1993, the Slovak Republic) |  |
| 斯图加特 | Sī tú jiā tè | Stuttgart, city in southwest Germany and capital of Baden-Württemberg 巴登·符騰堡州|巴登·符腾堡州[Ba1deng1 · / Fu2teng2bao3 Zhou1] |  |
| 斯威士兰 | Sī wēi shì lán | Eswatini (formerly Swaziland) |  |
| 斯宾诺莎 | Sī bīn nuò shā | Baruch or Benedict Spinoza (1632-1677), rationalist philosopher |  |
| 斯事体大 | sī shì tǐ dà | see 茲事體大|兹事体大[zi1 shi4 ti3 da4] |  |
| 斯彻达尔 | Sī chè dá ěr | Stjørdal (city in Trøndelag, Norway) |  |
| 斯蒂文森 | Sī dì wén sēn | Stevenson or Stephenson (name) |  |
| 斯芬克斯 | sī fēn kè sī | sphinx (myth.) (loanword) |  |
| 斯芬克司 | Sī fēn kè sī | Sphinx (Egyptian mythical beast) |  |
| 斯基克达 | sī jī kè dá | Skikda |  |
| 斯坎德培 | sī kǎn dé péi | Skanderbeg |  |
| 斯科讷省 | sī kē nè shěng | Skåne |  |
| 斯科普里 | Sī kē pǔ lǐ | Skopje, capital of North Macedonia |  |
| 斯拉夫语 | Sī lā fū yǔ | Slavic language |  |
| 斯莱特林 | Sī lái tè lín | Slytherin (Harry Potter) |  |
| 斯密约瑟 | Sī mì Yuē sè | Joseph Smith, Jr. (1805-1844), founder of the Latter Day Saint movement |  |
| 斯帕斯基 | Sī pà sī jī | Spassky (name) |  |
| 斯普利特 | Sī pǔ lì tè | Split (city in Croatia) |  |
| 斯台普斯 | Sī tái pǔ sī | Staples (Center), sports arena in Los Angeles |  |
| 斯坦贝克 | Sī tǎn bèi kè | John Steinbeck (1902-1968), US novelist |  |
| 斯塔万格 | sī tǎ wàn gé | Stavanger |  |
| 斯瓦希里 | Sī wǎ xī lǐ | Swahili |  |
| 斯文·海定 | | Sven Hedin (1865-1952), famous Swedish adventurer and archaeologist, whose 1894-1900 Central Asian expeditions uncovered Kroraina or Loulan 樓蘭|楼兰 / also written 斯文·赫定 |  |
| 斯德哥尔摩 | Sī dé gē ěr mó | Stockholm, capital of Sweden |  |
| 斯洛文尼亚 | Sī luò wén ní yà | Slovenia |  |
| 斯沃洛浮筒 | | Swallow float |  |
| 斯波尔丁县 | sī bō ěr dīng xiàn | Spalding |  |
| 斯大林格勒 | Sī dà lín gé lè | Stalingrad, former name of Volvograd 伏爾加格勒|伏尔加格勒 / (1925-1961) |  |
| 斯大林主义 | Sī dà lín zhǔ yì | Stalinism |  |
| 斯多葛主义 | Sī duō gě zhǔ yì | Stoicism |  |
| 斯福尔瓦尔 | Sī fú ěr wǎ ěr | Svolvær (city in Nordland, Norway) |  |
| 斯卡伯勒礁 | Sī kǎ bó lè Jiāo | Scarborough Shoal (Philippines' name for Huangyan Island) |  |
| 斯科费尔峰 | Sī kē fèi ěr Fēng | Scafell Pike, the highest mountain in England (978 m) |  |
| 斯克里亚宾 | Sī kè lǐ yà bīn | Alexander Scriabin (1872-1915), Russian composer and pianist |  |
| 斯里巴加湾 | sī lǐ bā jiā wān | Bandar |  |
| 斯洛伐克语 | Sī luò fá kè yǔ | Slovak (language) |  |
| 斯洛维尼亚 | Sī luò wéi ní yà | Slovenia (Tw) |  |
| 斯摩棱斯克 | Sī mó léng sī kè | Smolensk (Russian city) |  |
| 斯涅尔定律 | sī niè ěr dìng lu:4 | Snell's laws / law of refraction |  |
| 斯皮尔伯格 | Sī pí ěr bó gé | Steven Spielberg (1946-), US film director |  |
| 斯普特尼克 | Sī pǔ tè ní kè | Sputnik, Soviet artificial Earth satellite |  |
| 斯泰恩谢尔 | Sī tài ēn xiè ěr | Steinkjær (city in Trøndelag, Norway) |  |
| 斯塔克角山 | sī tǎ kè jiǎo shān | Starkhorn |  |
| 斯坦佛大学 | Sī tǎn fó Dà xué | Stanford University, Palo Alto, California |  |
| 斯坦福大学 | Sī tǎn fú Dà xué | Stanford University |  |
| 斯特拉斯堡 | Sī tè lā sī bǎo | Strasbourg |  |
| 斯特拉特福 | Sī tè lā tè fú | Stratford (place name) / Stratford-upon-Avon, UK city in Warwickshire and birthplace of William Shakespeare 莎士比亞|莎士比亚[Sha1 shi4 bi3 ya4] |  |
| 斯图尔特县 | sī tú ěr tè xiàn | Stewart |  |
| 斯瓦特谷地 | Sī wǎ tè gǔ dì | Swat valley in Pakistani Northwest Frontier |  |
| 斯瓦希里语 | Sī wǎ xī lǐ yǔ | Swahili (language) / Kiswahili |  |
| 斯文·海定 | Sī wén · Hǎi dìng | Sven Hedin (1865-1952), famous Swedish adventurer and archaeologist, whose 1894-1900 Central Asian expeditions uncovered Kroraina or Loulan 樓蘭|楼兰[Lou2 lan2] / also written 斯文·赫定 |  |
| 斯文·赫定 | Sī wén · Hè dìng | Sven Hedin (1865-1952), famous Swedish adventurer and archaeologist, whose 1894-1900 Central Asian expeditions uncovered Kroraina or Loulan 樓蘭|楼兰 |  |
| 斯蒂芬·哈珀 | | Stephen Harper (1959-), 22nd Prime Minister of Canada |  |
| 斯堪的纳维亚 | Sī kān dì nà wéi yà | Scandinavia |  |
| 斯托尔斯协议 | | Stals Accord |  |
| 斯纳戈夫宣言 | | Snagov Declaration |  |
| 斯德哥尔摩省 | sī dé gē ěr mó shěng | Stockholm |  |
| 斯蒂尔沃特县 | sī dì ěr wò tè xiàn | Stillwater |  |
| 斯蒂芬・哈珀 | Sī dì fēn · Hā pò | Stephen Harper (1959-), Canadian politician, prime minister from 2006 |  |
| 斯蒂芬·哈珀 | Sī dì fēn · Hā pò | Stephen Harper (1959-), Canadian politician, prime minister 2006-2015 |  |
| 斯堪地纳维亚 | Sī kān dì nà wéi yà | Scandinavia (Tw) |  |
| 斯拉夫穆斯林 | sī lā fú mù sī lín | Slavic Muslims |  |
| 斯雷布雷尼察 | Sī léi bù léi ní chá | Srebrenica, town in Bosnia-Herzegovina |  |
| 斯里巴加湾港 | Sī lǐ Bā jiā wān gǎng | Bandar Seri Begawan, capital of Brunei |  |
| 斯洛文尼亚语 | Sī luò wén ní yà yǔ | Slovenian (language) |  |
| 斯佩耳特小麦 | sī pèi ěr tè xiǎo mài | spelt (Triticum spelta) (loanword) |  |
| 斯普林菲尔德 | Sī pǔ lín fēi ěr dé | Springfield |  |
| 斯塔夫罗波尔 | sī tǎ fū luó bō ěr | Stavropol |  |
| 斯通亨治石栏 | Sī tōng hēng zhì shí lán | Stonehenge stone circle |  |
| 斯托肯立石圈 | Sī tuō kěn lì shí quān | Stonehenge stone circle |  |
| 斯维尔德洛夫 | Sī wéi ěr dé luò fū | Yakov Mikhailovich Sverdlov (1885-1919), Bolshevik organizer, ordered the murder of the Tsar's family in 1918, died of Spanish influenza |  |
| 斯威士兰王国 | sī wēi shì lán wáng guó | the Kingdom of Swaziland |  |
| 斯德哥尔摩呼吁 | | Stockholm Appeal |  |
| 斯科特深海高原 | | Scott plateau |  |
| 斯里兰卡监察团 | | Sri Lanka Monitoring Mission |  |
| 斯大林格勒会战 | Sī dà lín gé lè Huì zhàn | Battle of Stalingrad (1942-1943) / also called 斯大林格勒戰役|斯大林格勒战役 |  |
| 斯大林格勒战役 | Sī dà lín gé lè Zhàn yì | Battle of Stalingrad (1942-1943), decisive battle of Second World War and one of the bloodiest battles in history, when the Germans failed to take Stalingrad, were then trapped and destroyed by Soviet forces |  |
| 斯德哥尔摩水周 | sī dé gē ěr mó shuǐ zhōu | Stockholm Water Week |  |
| 斯德哥尔摩宣言 | sī dé gē ěr mó xuān yán | Declaration of Stockholm |  |
| 斯普拉特利群岛 | Sī pǔ lā tè lì Qún dǎo | Spratly Islands, disputed between China, Malaysia, the Philippines, Taiwan and Vietnam / same as 南沙群島|南沙群岛[Nan1 sha1 Qun2 dao3] |  |
| 斯坦福・莱佛士 | Sī tǎn fú · Lái fó shì | Stamford Raffles (1781-1826), British statesman and founder of the city of Singapore |  |
| 斯坦福·莱佛士 | Sī tǎn fú · Lái fó shì | Stamford Raffles (1781-1826), British statesman and founder of the city of Singapore |  |
| 斯特凡诺普洛斯 | Sī tè fán nuò pǔ luò sī | Stephanopoulos (e.g. former Clinton aide George Stephanopoulos) |  |
| 斯里哈斯塔发射场 | | Sriharikota Launch Complex |  |
| 斯必泽空间望远镜 | sī bì zé kōng jiān wàng yuǎn jìng | Spitzer |  |
| 斯洛文尼亚共和国 | Sī luò wén ní yà Gòng hé guó | Republic of Slovenia |  |
| 斯瓦尔巴和扬马延 | Sī wǎ ěr bā hé Yáng mǎ yán | Svalbard and Jan Mayen |  |
| 斯德哥尔摩结论纪要 | | Stockholm Summary of Conclusions |  |
| 斯瓦尔巴国际种子库 | | Svalbard International Seed Vault |  |
| 斯图加特部长级会议 | | Stuttgart Ministerial Conference |  |
| 斯里·奥罗宾多学会 | | Sri Aurobindo Society |  |
| 斯威士兰能力建设倡议 | | Swaziland Capacity Initiative |  |
| 斯德哥尔摩环境研究所 | sī dé gē ěr mó huán jìng yán jiū suǒ | Stockholm Environment Institute |  |
| 斯雷布雷尼察和泽帕协定 | | Srebrenica and Zepa Agreement |  |
| 斯德哥尔摩环境会议论坛 | | Stockholm Environment Conference Forum |  |
| 斯堪的纳维亚行政研究所 | | Scandinavian Institutes for Administrative Research |  |
| 斯德哥尔摩国际水研究所 | sī dé gē ěr mó guó jì shuǐ yán jiū suǒ | Stockholm International Water Institute |  |
| 斯特恩气候变化经济学评论 | | Stern Review on the Economics of Climate Change |  |
| 斯堪的拿维亚非洲研究协会 | | Scandinavian Institute of African Studies |  |
| 斯德哥尔摩国际和平研究所 | sī dé gē ěr mó guó jì hé píng yán jiù suǒ | Stockholm International Peace Research Institute |  |
| 斯洛文尼亚社会主义共和国 | sī luò wén ní yà shè huì zhǔ yì gòng hé guó | Socialist |  |
| 斯德哥尔摩人类环境行动计划 | | Stockholm Plan of Action for the Human Environment |  |
| 斯堪的纳维亚双极光雷达试验 | | Scandinavian Twin Auroral Radar Experiment |  |
| 斯堪的纳维亚多普勒观测运动 | | Scandinavian Doppler Observation Campaign |  |
| 斯特拉斯堡国际专利分类协定 | | Strasbourg Agreement Concerning the International Patent Classification |  |
| 斯里兰卡民主社会主义共和国 | sī lǐ lán kǎ mín zhǔ shè huì zhǔ yì gòng hé guó | the Democratic Socialist Republic of Sri Lanka |  |
| 斯德哥尔摩全球安全与治理倡议 | | Stockholm Initiative on Global Security and Governance |  |