Osku
Osku is a Finnish given name, typically male. The name is a diminutive form of Oskar. Oskar itself has origins in Old Norse, with the meaning "god spear" or "spear of the gods." The name gained popularity in Finland through the influence of Swedish and German cultures, where Oskar was also a recognized name.
Osku is a relatively common name in Finland, though its usage has seen fluctuations over the decades.