| 凯恩斯 | Kǎi ēn sī | Keynes (name); John Maynard Keynes (1883-1946), influential British economist |
| 安第斯山 | Ān dì sī shān | the Andes mountain range |
| 卡洛斯 | Kǎ luò sī | Carlos (name) |
| 斯宾诺莎 | Sī bīn nuò shā | Baruch or Benedict Spinoza (1632-1677), rationalist philosopher |
| 孟德斯鸠 | Mèng dé sī jiū | Charles de Secondat, baron de Montesquieu |
| 库尔斯克 | Kù ěr sī kè | Kursk (city) |
| 拉巴斯 | Lā bā sī | La Paz, administrative capital of Bolivia |
| 斯特恩 | Sī tè ēn | Stern (name) |
| 斯宾塞 | Sī bīn sè | Spencer or Spence (name) |
| 毕达哥拉斯 | Bì dá gē lā sī | Pythagoras |
| 史蒂文斯 | Shǐ dì wén sī | Stephens; Stevens |
| 慢条斯理 | màn tiáo sī lǐ | with calculated unhurried steps (idiom); slow and deliberate; methodical |
| 洪都拉斯 | Hóng dū lā sī | Honduras |
| 兰斯 | Lán sī | Rheims (city in France) |
| 逻各斯 | luó gè sī | logos (transliteration) |
| 佳木斯 | Jiā mù sī | Kiamusze or Jiamusi prefecture level city in Heilongjiang province 黑龙江 in northeast China |
| 惠更斯 | Huì gēng sī | Huygens (name); Christiaan Huygens (1629-1695), Dutch mathematician and astronomer |
| 中国伊斯兰教协会 | Zhōng guó Yī sī lán jiào Xié huì | Chinese Patriotic Islamic Association |
| 丹尼斯 | dān ní sī | Dennis (name) |
| 亚哈斯 | Yà hā sī | Ahaz (son of Jotham) |
| 亚当・斯密 | Yà dāng · Sī mì | Adam Smith (1723-1790), Scottish ethical philosopher and pioneer economist, author of The Wealth of Nations 国富论 |
| 亚当斯 | Yà dāng sī | Adams |
| 亚当斯敦 | Yà dāng sī dūn | Adamstown, capital of the Pitcairn Islands |
| 亚的斯亚贝巴 | Yà dì sī Yà bèi bā | Addis Ababa, capital of Ethiopia |
| 亚里斯多德 | Yà lǐ sī duō dé | Aristotle (philosopher) |
| 京斯敦 | Jīng sī dūn | Kingstown, capital of Saint Vincent and the Grenadines |
| 代利斯 | Dài lì sī | Dallys, Algerian seaport and naval base |
| 以斯帖 | Yǐ sī tiě | Esther (name) |
| 以斯帖记 | Yǐ sī tiě jì | Book of Esther |
| 以斯拉记 | yǐ sī lā jì | Book of Ezra |
| 伊利埃斯库 | Yī lì āi sī kù | Iliescu |
| 伊娃・门德斯 | Yī wá · Mén dé sī | Eva Mendes, American actress |
| 伊尼亚斯 | Yī ní yà sī | Aeneas |
| 伊戈尔斯 | Yī gē ěr sī | Eagles (name) |
| 伊斯坦布尔 | Yī sī tǎn bù ěr | Istanbul, Turkey |
| 伊斯帕尼奥拉 | Yī sī pà ní ào lā | Hispaniola (Caribbean island including Haiti and the Dominican Republic) |
| 伊斯曼 | Yī sī màn | Eastman (name); George Eastman (1854-1932), US inventor and founder of Kodak 柯达; Max F. Eastman (1883-1969), US socialist writer, subsequently severe critic of USSR |
| 伊斯法罕 | Yī sī fǎ hǎn | Isfahan or Eşfahān, province and city in central Iran |
| 伊斯特 | yī sī tè | Istres (French town) |
| 伊斯兰 | Yī sī lán | Islam |
| 伊斯兰会议组织 | Yī sī lán Huì yì Zǔ zhī | Organization of the Islamic Conference |
| 伊斯兰圣战组织 | Yī sī lán shèng zhàn zǔ zhī | Islamic Jihad (Palestinian armed faction) |
| 伊斯兰党 | Yī sī lán dǎng | Islamic party |
| 伊莱克斯 | Yī lái kè sī | Electrolux (Swedish manufacturer of home appliances) |
| 伍德豪斯 | Wǔ dé háo sī | Woodhouse or Wodehouse (name) |
| 休斯敦 | Xiū sī dūn | Houston, Texas |
| 休斯顿 | xiū sī dùn | Houston |
| 伯恩斯 | Bó ēn sī | Burns (name); Nicholas Burns (1956-), US diplomat, Under-secretary at US State Department from 2005 |
| 伯恩茅斯 | Bó ēn máo sī | Bournemouth, UK |
| 伯拉第斯拉瓦 | Bó lā dì sī lā wǎ | Bratislava, capital of Slovakia |
