Sairusi Naituku (26 February 1961, in Lomaiviti – 7 June 2016, in Lautoka) was a former Fijian rugby union player.
He played as a prop
He was the captain of Fiji secondary school and Fiji Colts and was one of the first Fijians to secure a rugby contract in South Africa, playing for the South Pacific Barbarians, a team made up of players from Fiji, Samoa and Tonga that went to play a rebel tour in the apartheid-era South Africa.