Isoa Tuinaceva Logavatu (born 1925 in Nadi, Fiji; died 1991 in Fiji) was a Fijian cricketer.
Logavatu made his first-class debut for Fiji in 1948 against Auckland during Fiji's 1947/48 tour of New Zealand.
During the tour, he played five first-class matches, with his final first-class match coming against Auckland.
With the ball he took 16 wickets at a bowling average of 30.00, with best figures of 4/46.
Logavatu also represented Fiji in 26 non first-class matches from 1948 to 1962, with his final match for Fiji coming against Taranaki during their 1961/62 tour of New Zealand.