瓦托阿岛是斐济的环礁，位于太平洋海域，属于拉乌群岛的一部分，长4.2公里、宽1.4公里，面积4.45平方公里，最高点海拔高度67米，该岛在1774年7月2日被詹姆斯·库克发现，岛上人口约300。

Vatoa (pronounced [βaˈtoa]) (known as Turtle Island after Cook's visit) is an outlier of Fiji's Lau Group.

Vatoa was the only island of present-day Fiji visited by James Cook. The island was sighted on 2 July 1774. The next day, a Sunday, the Master and some of Cook's crew went ashore, "thinking to speak with the people not more than 20 in number who were Arm'd with Clubs and Spears, but the moment he set foot on Shore they retired, he left ashore some Medals, Nails and a Knife ..... Near the Reef were seen several Turtle which occasioned my giving that name to the Isle." Cook's chart shows the name Turtle Isle.