Masanori is a masculine Japanese given name, composed of two kanji characters: "masa" (真) meaning "genuine" or "true," and "nori" (則) meaning "rule" or "principle." Together, they convey the meaning of "upholding principles genuinely" or "following true rules." This name is often given to boys born on October 31st in Japan due to its pronunciation being similar to the Japanese reading for that date, "mukaseru hi" (無くさる日). However, it is not limited to this particular day and can be used year-round. Masanori is a unique and culturally significant name with deep-rooted traditions in Japanese culture.
The name Masanori appears to have been relatively popular from 1916 to 1930, with the most frequent years being 1917, 1918, and 1919, each having 5 births. There was a slight increase in popularity in 1923 with 7 births. After 1924, the name's popularity seemed to decrease, as there were fewer births per year. Overall, Masanori had a total of 60 births during this period.