There are an estimated 473 people named Riku alive worldwide today. That ranks Riku at #16767 globally, with the highest concentrations in United States.
In the United States, Riku is held by approximately 473 people, ranking #16767 among first names. That works out to roughly 0 per 100,000 Americans (or 1 in 701,691 U.S. residents).
Historically Riku is used overwhelmingly as a male name (100.0% male).
Riku appears in birth records going back to 1880. Use the chart below to see how its popularity has changed across decades, and the surname section to find common pairings.