The mountain kingfisher (Syma megarhyncha) is a species of bird in the subfamily Halcyoninae in the family Alcedinidae.

Adult males are 21–24 cm (8.3–9.4 in) long, and have a rufous head and underparts, greenish-blue upperparts, a dark blue tail, and black flight feathers.

The mountain kingfisher was described as Syma megarhycha by Tommaso Salvadori in 1896, on the basis of specimens collected in 1893 in Moroka, New Guinea.

[4] Mountain kingfisher has been designated as the official common name by the International Ornithologists' Union (IOC).

[7] Males have a rufous head and underparts and greenish-blue upperparts, along with black loral and nape patches.

The tail is dark blue and it has black wing feathers with bluish edges and tips.

They also have a larger black area around the eye and dark-tipped feathers on the cheeks and breast.

[11][9] The mountain kingfisher mainly inhabits primary forest and secondary growth within its range.

It hunts by perching in middle and upper canopy for long periods of time, before diving to capture prey.

However, due to its relatively large range and stable population, the IUCN lists it as a least concern species.