The Lamari River is a river that originates in the Kratke Range in the south central highlands of Eastern Highlands Province of Papua New Guinea.

[1] It flows into the Purari River basin.

Awa speaking indigenous people populate the Lamari river basin.

[2] The Lamari River serves as the demarcation line between the Kukukuku people and their neighbours to the north-west, the Fore people.

[3] This article related to a river in Papua New Guinea is a stub.