The name Mariko originates from Japan and is a feminine Japanese given name. It is a combination of the Japanese elements "mari" meaning "true, real, genuine" and "ko" meaning "child". Mariko can be translated to mean "the genuine child" or "the truthful child".

The name has been in use for centuries in Japan, with its earliest recorded examples dating back to the Heian period (794-1185 CE). During this time, Mariko was a popular name among the aristocratic class and was often given to daughters of noble families.

In Japanese literature and poetry, the name Mariko has been mentioned in various works from the Heian period onwards. One notable example is the Tale of Genji, a classic work of Japanese literature written in the early 11th century by Murasaki Shikibu, which features a character named Mariko.

Throughout Japanese history, there have been several notable women who bore the name Mariko. One of the earliest recorded was Mariko Hōjō (1155-1225), a powerful woman who served as the de facto ruler of the Kamakura shogunate for a brief period in the early 13th century.

Another famous Mariko was Mariko Okada (1842-1916), a pioneering educator and women's rights activist who founded one of Japan's first schools for women in the late 19th century.

In the 20th century, Mariko Miyagi (1932-2014) was a renowned Japanese novelist and playwright whose works explored themes of family, identity, and the complexities of modern Japanese society.

Mariko Mukai (born 1952) is a Japanese astronaut and the first Japanese woman to go into space, having spent over 600 hours in space during her two missions on the Space Shuttle and International Space Station.

Mariko Mori (born 1967) is a contemporary Japanese artist known for her multimedia installations and performances that explore themes of technology, spirituality, and the future.

The name Mariko has remained a popular choice for Japanese parents, as it carries a sense of tradition and cultural significance while also having a beautiful and meaningful etymology.