塔法希岛是太平洋岛国汤加的岛屿，位于该国北部，邻近萨摩亚的萨瓦伊岛，长2.8公里、宽1.2公里，面积3.42平方公里，最高点海拔高度560米，2001年人口69。

Tafahi is a small (1.2 km × 2.8 km or 0.75 mi × 1.74 mi) island in the north of the Tonga archipelago, in fact closer to Savaiʻi (Sāmoa) than the main islands of Tonga. It is only 9 km (5.6 mi) north-northeast away from Niuatoputapu, and fishermen communicate in small outboard motorboats almost daily between the two.