Tsutomu is a masculine Japanese given name. It means "impeccable" or "pure" and is composed of the kanji characters tsu (豆) meaning "bean" and tomu (富) meaning "richness" or "abundance". This name has been used traditionally in Japan, with its earliest known usage dating back to the Edo period. It is often given to boys born under certain astrological signs or seasons believed to be auspicious for naming.
The name Tsutomu experienced significant fluctuations in popularity over the years from 1912 to 1937, with a peak of 31 births recorded in 1924 and a low of just 5 births in both 1936 and 1937. The total number of births with this name during this period was 352.