Niven is a Scottish surname of uncertain origin, but it is believed to have derived from the Gaelic name Mac Naoimhin, meaning "son of the saintly one." The name is more commonly used as a given name in modern times and has gained popularity in recent years. Niven has an air of elegance and sophistication, making it a timeless and distinguished choice for a boy's name. It exudes a sense of strength and resilience, reflecting qualities of determination and perseverance. Overall, Niven is a charming and unique name that is sure to make a lasting impression.