Kadi is an Estonian feminine given name, typically used as a short form of Katariina, the Finnish and Estonian variant of Katherine. The name thus shares the rich linguistic and cultural heritage of Katherine, reflecting a long history of adaptation across languages and regions.EtymologyThe ultimate root, Katherine, has a debated etymology. It may derive from the Greek Αἰκατερίνη (Aikaterine), possibly from ἑκάτερος (hekateros) meaning "each of the two;" or from the goddess Hecate. Early Christians later associated the name with Greek καθαρός (katharos) meaning "pure," influencing its spelling and popularity. Saint Catherine of Alexandria, a 4th-century martyr thought to be tortured on a spiked wheel, helped spread the name across Western Europe after the Crusades.Usage in EstoniaIn Estonia, Kadi is an independent given name, though it originated as a diminutive of Katariina. It gained popularity as a standalone name in the 20th century, especially between the 1950s and 1990s. The name peaked in the 1970s–1980s, partially inspired by the Russian Katya but firmly Estonian in form. Today, Kadi is still given to a modest number of children annually, remaining a classic yet practical Estonian choice.Notable BearersSeveral Estonian women named Kadi have achieved prominence: Kadi Pärnits (born 1965) is a politician and trade union leader; Kadi Taniloo (1911–1998) was an actress; Kadi Sissoko (born 1999) is a French basketball player. Internationally, the name appears in other communities as well, including Kadi Sesay (born 1949), a Sierra Leonean politician, and Evdokia Kadi (born 1981), a Greek Cypriot singer.Related NamesVariants include Kaia (Finnish/Estonian short form), Kaidi, Kaie, Kaisa, Kaja 1, and Kati (Estonian, also a short form). The diminutive Kai 2 is also a variant of Kadi. In other languages, longer forms include Katerina (Russian), Katalin (Hungarian), Katsiaryna (Belarusian), Karyna (Ukrainian), and Aikaterine (Ancient Greek).Meaning: Short form of Katariina (ultimately meaning "pure" or debated other origins)Origin: Estonian (via Katariina)Type: Diminutive originally; now an independent given nameUsage Regions: Predominantly Estonia, also used in other Nordic countries and diaspora