Rasbora armitagei, also known as Armitage's rasbora or Armitage'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 standard length.
Rasbora armitagei is known from shady, slow-flowing clear water streams with gravel and boulder substrata.
Rasbora armitagei honours the British civil servant and hobby aquarist David Armitage in its specific name.