Dipsas welborni is a non-venomous species of snake in the subfamily Dipsadinae.

[1] It is found in 26 localities along the Cordillera del Cóndor in south-eastern Ecuador(provinces Morona Santiago and Zamora Chinchipe) and northern Peru (Amazonas department).

The species occurs over an estimated area of 10,521 km2 and has been recorded at elevations 853–1843 m above sea level.

[2] Dipsas welborni is typically found foraging on vegetation 20–350 cm above the ground in evergreen montane forests, both old-growth and moderately disturbed.

These snakes are non-aggressive, resorting to defensive measures when threatened, including body flattening, head expansion to form a triangular shape, and emitting a musky, unpalatable odor.