Meaning and history
Len is an English and Dutch short form of several names, especially Leonard, Lennard, and Helena. Leonard comes from Germanic elements meaning “lion” and “brave” or “hardy,” while Helena belongs to a Greek name family of uncertain etymology, often associated with light. The intended meaning therefore depends on the full name. Len is also used independently. Notable bearers include Canadian actor Len Cariou and British writer Len Deighton.
Len moved from #773 to #971 for boys between 1970 and 1971. Its highest annual birth count came in 1960, with 121 births.