- 卡尔文 kǎ'ěrwén CalvinCalvin (name)
- 卡尔扎伊 kǎ'ěrzāyī KarzaiHamid Karzai (1957-), Afghan politician and president from 2004 to 2014
- 卡尔顿 kǎ'ěrdùn Carleton
- 笛卡尔 díkǎ'ěr René DescartesRené Descartes (1596-1650), influential French philosopher and mathematician who founded analytic geometry and rationalism.
- 卡尔德龙 kǎ'ěrdélóng CalderonHispanic surname Calderón
- 卡尔加里 kǎ'ěrjiālǐ CalgaryCalgary, the largest city in the province of Alberta, Canada
- 卡尔巴拉 kǎ'ěrbālā KarbalaKarbala, a city in central Iraq that is a holy site for Shia Muslims
- 卡尔斯鲁厄 kǎ'ěrsīlǔ'è KarlsruheKarlsruhe, a city in southwest Germany
- 帕斯卡尔 pàsīkǎ'ěr PascalPascal, commonly used as a transliteration for the French surname or the Pascal programming language
- 拉什卡尔加 lāshíkǎ'ěrjiā Lashkar GahLashkar Gah, the capital city of Helmand province in southern Afghanistan
- 皮卡尔 píkǎ'ěr PicardAuguste Piccard (1884–1962), a Swiss physicist, inventor, and explorer known for his record-breaking hydrogen balloon flights and for inventing the bathyscaphe for deep-sea exploration; also used as a transliteration for the surname Picard
- 参卡尔 cānkǎ'ěr Ivan CankarIvan Cankar (1876-1918), Slovenian modernist writer
- 卡尔文克莱因 kǎ'ěrwénkèláiyīn Calvin KleinAmerican fashion brand founded by Calvin Klein
- 笛卡尔直角坐标 díkǎ'ěrzhíjiǎozuòbiāo Cartesian coordinatesCartesian rectangular coordinate system
