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Origin: Finnish

Meaning: Strength, stoic determination, resilience, bravery

Sisu is a girl’s name of Finnish origin. It derives from the Finnish concept of sisu, which is described as strength, stoic determination, resilience, bravery, and hardiness. Often used to express the Finnish national character, sisu is equivalent to the concept of “guts” or “grit” in English. This strong name will serve as a daily reminder to baby of the tenacity they have deep within themselves.