The rufous-vented whitetip (Urosticte ruficrissa) is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae.

It inhabits the interior and edges of partly open montane forest and cloudforest between elevations of 1,600 and 2,400 m (5,200 and 7,900 ft).

[7] The rufous-vented whitetip is generally sedentary but locally moves to higher elevations after breeding.

It collects nectar from a variety of flowering plants including bromeliads and members of genera Clusia and Palicourea.

The rufous-vented whitetip makes a "mellow, fast twittering 'tweetweetweetwee...'" that can sound like "a laughing chatter".

[7] The IUCN has assessed the rufous-vented whitetip as being of Least Concern, though its population size is not known and believed to be decreasing.