The forest kingfisher (Todiramphus macleayii), also known as Macleay's or the blue kingfisher, is a species of kingfisher in the subfamily Halcyoninae, also known as tree kingfishers. It is a predominantly blue and white bird. It is found in Indonesia, New Guinea and coastal eastern and Northern Australia. Like many other kingfishers, it hunts invertebrates, small frogs, and lizards.
The forest kingfisher measures 21.5–25.5 cm in length. It has blue wings, head and tail with white breast, abdomen and nape. It has a white patch in front of the eyes and a black band stretching from the bill, through the eyes to the ear coverts. A white patch is visible on the wings in flight. The female is distinguished by a blue rather than white nape. The iris is dark brown and the legs and feet dark grey. Immature birds are duller with a blackish crown. The call is a shrill t-reek, repeated regularly, most often in the early morning.