Whaleback Light is a historic lighthouse marking the mouth of the Piscataqua River in Kittery, Maine.

It is located on a rocky outcrop offshore southwest of Fort Foster and south of Wood Island in Kittery.

The tower was upgraded in 1855 with a new lantern and a fourth order Fresnel lens.

The light is 59 feet (18 m) above mean sea level, and the tower, also housed the keeper's living quarters and a storage area.

[5] The current lighthouse exhibits two white flashes every 10 seconds and is created by a modern VLB-44 LED light, which was installed in October 2009.