- 连中三元 liánzhòngsānyuán to win three top honors in a row(literary) to rank first in the provincial, national, and palace levels of the imperial examinations in succession
- 三元区 sānyuánqū Sanyuan districtSanyuan, a district of Sanming City [[三明市|三明市|san1 ming2 shi4]] in Fujian Province
- 三元大帝 sānyuándàdì Three Great Emperor-Officialsdaoist deities overseeing the three domains of heaven, earth, and water, often identified with the legendary rulers Yao, Shun, and Yu
- 三元醇 sānyuánchún triola polyol containing three hydroxyl groups, such as glycerol
- 三元音 sānyuányīn triphthonga speech sound that consists of three vowels within a single syllable
- 大三元 dàsānyuán triple crown(literary) collective name for the highest-ranking graduates of the three levels of imperial examinations in ancient China, specifically the [[解元|解元|jie4 yuan2]], [[会元|會元|hui4 yuan2]], and [[状元|狀元|zhuang4 yuan2]]
- 三元及第 sānyuánjídì top honors in three examsAn expression referring to a candidate who placed first in all three levels of the imperial civil service examinations: the provincial, metropolitan, and palace exams.