Mount Japfü (, ), is a mountain peak of the Barail Range, located in Kohima District of Nagaland in India, about south of Kohima, the capital of Nagaland.
With a summit elevation of , it is the fourth highest mountain in the Indian state of Nagaland and the highest in the Barail Range.
The peak of Mount Japfü receives snowfall in the winter months from December to February.
Mount Japfü holds the Guinness World Record for the tallest Rhododendron tree in the world. It was discovered in 1993 and recorded a height of .