Riku as a Baby Name. Meaning and Origin of Riku

What is the meaning of the name Riku ?

The baby name Riku is a Male name , 2 syllables long and is pronounced Japanese: [ɾikɯ] (approx. "REE-koo"); Finnish/English: /ˈriːku/ ("REE-koo").

Riku is Japanese in Origin.

Riku is a cross-cultural given name with distinct roots in Japanese and Finnish. In Japanese, it is typically masculine and written with various kanji, most commonly 陸 “land, shore”; contemporary choices like 理玖, 琉空, or 里久 shift the nuance to “reason + long time,” “lapis + sky,” or “village + long time.” It gained broad use in the late 20th century and remains fashionable, helped by pop-culture visibility (e.g., the Kingdom Hearts character). Usage today skews male but can be unisex depending on kanji.

In Finland, Riku functions as a diminutive of Rikhard (Richard), from Old High German elements ric “ruler, power” and hard “brave, hardy,” yielding the meaning “powerful/brave ruler.” It has been used independently since the mid to late 1900s. Variants and cognates include Rikhard, Richard, Ricardo, Riccardo; short forms Rik, Rick, Ricky. Related Japanese forms include Rikuo and Rikuto.