Tupua Tamasese Lealofi-o-a'ana III (4 May 1901 – 29 December 1929) was a high chief of Samoa who was a leader of the country's pro-independent Mau movement during the early 1900s.
He was fatally shot by New Zealand police during a Mau procession on 28 December 1929 in Apia which turned violent, in what became known as Black Saturday.
His tomb, constructed of black stones in a tier is situated in Lepea village beside the main road and 5 minutes from Apia.
His eldest son was Tupua Tamasese Lealofi IV (1922–1983), who served two terms as Samoa's prime minister.