Richard Robert "Ricky" Arnold II (born November 26, 1963 in Cheverly, Maryland) is an American educator and a NASA astronaut.
He flew on Space Shuttle mission STS-119, which launched March 15, 2009 and delivered the final set of solar arrays to the International Space Station.
He launched again in 2018 to the ISS, onboard Soyuz MS-08.
Arnold was raised in Bowie, Maryland and is married to Eloise Miller Arnold of Bowie.