The name Peni is of Polynesian origin, specifically from the Cook Islands and Samoa. It means 'sky' or 'heaven'. Peni is a unisex name, given to both boys and girls, although it's more commonly used for males in some regions.
The name Peni experienced peak popularity between 1958 and 1963, with a significant spike in 1958 (13 births) and consistent high numbers until 1963 (12 births). The name's usage began to decline afterward, reaching its lowest point in 1967 and 1968 (both with 5 births), before seeing a slight resurgence in the early 1970s. Over the entire period from 1946 to 1972, there were a total of 144 babies named Peni.