Rasbora armitagei, also known as Armitagei's rasbora or Armitagei’s striped rasbora, is a minnow endemic to Sri Lanka. The fish was discovered from a small tributary of Kalu Ganga at Rakwana, South-Western Wet zone, Sri Lanka. This species is named after naturalist David Armitage.
Rasbora armitagei can grow to 6.2cm (02.4inches) standard length.
Rasbora armitagei is known from shady, slow-flowing clear water streams with gravel and boulder substrata.