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In the entire world, ケイコ (Keiko , ケイコ ) is a common predominantly girly, but very infrequently masculine given name. The given name ケイコ is characteristic of Japan, where it is quite a rare female name, Hong Kong, and Paraguay. Measured by absolute frequency, this name is the most popular in Japan, the United States, and Indonesia. More frequently, ケイコ is the last name as well as the forename.
ケイコ is also a name for the fictitious and mythical characters: Keiko Honda , the fictional character from the Crayon Shin-chan manga series; Keiko O'Brien , the television character played by Rosalind Chao from Star Trek, Star Trek: Deep Space Nine; Keiko Sonoda , the character in Revolutionary Girl Utena and Keiko , the fictional character appearing in the movie « Keiko ».