Kau Mapu (died 20 November 1979) was a Cook Islands chief, civil servant and politician.
Mapu was descended from several Ariki families and held the title Tearikivao Putokotoko Pareraka Mataiapo.
[1] In 1958 he was elected to the new Legislative Assembly as a representative of Aitutaki Island Council.
He was re-elected in 1961, but the Island Council seats were abolished at the 1965 elections.
This article about a Cook Islands politician is a stub.