Meaning A boy's name of Finnish origin, it means "Finnish short form of Richard." Origin of Riku Finnish +-100%Zoom level changed to 1 Popular Middle Names Brian, Joseph Pronunciation 🔊 Listen Riku Similar Names Rikkard Launce Richie Ryzard Rhisiart Tuomas Joosef Joosep Paavo Taneli Year by Year Popularity of Riku