A short form of Leticia or Letitia, meaning joy, happiness, or gladness.
Leti is a warm diminutive of Leticia or Letitia, a Latin name meaning joy or happiness, derived from laetitia, the same root that gives us the English word elate. In ancient Rome, Laetitia was actually personified as a goddess of abundance and gaiety, depicted in reliefs and coins holding garlands and a patera.
The full name Leticia carried aristocratic weight through European history — it was borne by several medieval noblewomen and became particularly beloved in Spain and Latin America, where its musical four syllables felt natural and elegant. Leti as a standalone name or nickname is most common in Hispanic cultures across Mexico, Central America, and the United States, where it functions both as a term of endearment and a full given name. It carries the warmth of familiar address even when used formally — the kind of name that sounds like it comes with a hug.
In the United States, the name gained wider recognition through Leticia Leti Ortiz, now Queen Letizia of Spain, though her nickname Leti circulates most warmly in Spanish-speaking communities as something altogether more intimate than a royal title. Short, bright, and unencumbered, Leti has the quality of names that feel complete rather than truncated — a name that doesn't seem to be missing anything, carrying its ancient meaning of pure joy in just four letters.