Hypnale zara, the lowlands hump-nosed pit viper, is a venomous pit viper species endemic to Sri Lanka.

It is distinguished from Hypnale nepa by variably colored body and less upcurved snout.

[2] Hypnale zara has 10–19 minute scales extending from wart-like protuberances on the snout tip.

Two rows of distinct sub-oval or sub-triangular blotches meet in the vertebral region.

Venter is lighter than dorsum, sometimes light ash-gray.