Ruben Tatevosovich Yesayan (born November 24, 1946) is a Russian-Armenian test pilot.

[2] In 2013, Yesayan, together with other Russian test pilots, signed an open letter to Vladimir Putin, criticizing the United Aircraft Corporation for not producing civilian airliners and outlining other shortcomings in the Russian aviation industry.

[4] Following the Malaysia Airlines Flight 17 incident, Yesayan, alongside another test pilot Magomed Tolboyev, criticized the Russian version about the airliner's shootdown by a Ukrainian Sukhoi Su-25 aircraft: "Someone, unfamiliar with Su-25's capabilities and the Boeing-777 aircraft, is trying a PR stunt.

The Boeing-777 aircraft, which I tested in 1998 in Seattle, flies at Mach 0.83 in a cruise flight.

[5] Yesayan also noted that the Su-25 air-to-air missiles are heat-seeking and would strike the engine, while the Malaysia Airlines Flight 17 Boeing was damaged on the cockpit side.