Olinoga, also romanized as Orinoga, is a supporting character in the anime Kaina of the Great Snow Sea and its sequel film Kaina of the Great Snow Sea: Star Sage. He serves in the snow-sea kingdom of Atland as the captain of the royal guard, a position defined by devoted service to the Atland monarchy and the protection of the royal family.

Olinoga is an adult man with short blue hair, and his bearing is that of a disciplined soldier. He is a skilled swordsman, which is the main ability he displays over the course of the story. When the rival nation of Valghia moves against Atland, he faces Amerote, an officer of the Valghian military, in direct combat. Although he is loyal and capable, he is unable to prevent Princess Ririha from being captured by the enemy during that confrontation, and this event shapes much of his early involvement in the narrative. His conduct throughout the television series reflects his commitment to duty and to the kingdom he serves, and he remains part of the supporting cast in the Star Sage film.

Olinoga's role in the story is that of a guardian figure within Atland rather than a central protagonist. His motivation is tied to his sworn duty as a protector of the kingdom and its rulers, and his personal history is not explored in depth in the series. His characterization is built primarily around his loyalty, his military standing, and his confrontations with the forces of Valghia.