Popular in Latvia, Keita is a short form of Katrīna, also used as a stand alone name, much like Kate is in English speaking countries. 
 
Keita is also used as an East African and a Japanese masculine name.

Valo

International Variations of Katherine

Variations of Katherine

Keita

As a Japanese name, Keita could mean "great celebration", "big enlightenment", "great opening" or similar, depending on which kanji combinations are used. As an East African name, it can mean "worshipper" or "blessing", while a few sources link it to the Scottish name, Keith, thanks to its Celtic root, Kayto, meaning "wood". 
 
Used as a given name and a surname, just a few of the notable bearers include Japanese actor, Keita Michida, Senegalese footballer, Keita Baldé, and Japanese golfer, Keita Nakajima. In popular culture, Keita Mori is one of the protagonists in Natasha Pulley's novel, The Watchmaker of Filigree Street. 
 
In Latvia, meanwhile, Keita is a popular feminine name and a variation of Kate.

Keita

Keita Origin and Meaning

Keita in Nameberry Forums