Masaru is a unisex Japanese given name that has gained international popularity due to its appealing sound and meaning. It translates to 'victorious' or 'successful', which is often associated with the kanji character 勝 (masu, meaning 'victory'). The name is composed of two elements: masa (勝) and ru (留).
"The name Masaru experienced significant fluctuations in popularity over the given years, with a notable peak of 31 births in 1917 and several periods of minimal usage, such as the five consecutive years from 1935 to 1939 where only six babies were named Masaru each year."