Yi or YI may refer to:
In finance, the yield curve is a curve showing several yields or interest rates across different contract lengths (2 month, 2 year, 20 year, etc.
In Chinese philosophy, yin and yang ( and ; Chinese: 陰陽 yīnyáng, lit. "dark-bright", "negative-positive") is a concept of dualism in ancient Chinese philosophy, describing how seemingly opposite or contrary forces may actually be complementary, interconnected, and interdependent in the natural world, and how they may give rise to each other as they interrelate to one another.
There are some Yiddish words used in English language context. An English sentence that uses these words sometimes is said to be in Yinglish (or Hebronics); however, the primary meaning of Yinglish is an anglicism used in Yiddish.
Yitzhak Rabin (; Hebrew: יִצְחָק רַבִּין, IPA: [jitsˈχak ʁaˈbin] (listen); 1 March 1922 – 4 November 1995) was an Israeli politician, statesman and general.
The yield point is the point on a stress–strain curve that indicates the limit of elastic behavior and the beginning plastic behavior.
Yingluck Shinawatra (Thai: ยิ่งลักษณ์ ชินวัตร, RTGS: Yinglak Chinnawat, pronounced [jîŋ.lák t͡ɕʰīn.nā.wát]; Serbian: Jingluk Šinavatra; born 21 June 1967), nicknamed Pou (Thai: ปู, RTGS: Pu, pronounced [pūː], meaning "crab"), is a Thai businesswoman, politician and a member of the Pheu Thai Party who became the Prime Minister of Thailand following the 2011 election.