List of Famous people born on April 9th

Aulis Sallinen is a Finnish contemporary classical music composer. His music has been variously described as "remorselessly harsh", a "beautifully crafted amalgam of several 20th-century styles", and "neo-romantic". Sallinen studied at the Sibelius Academy, where his teachers included Joonas Kokkonen. He has had works commissioned by the Kronos Quartet, and has also written seven operas, eight symphonies, concertos for violin, cello, flute, horn, and English horn, as well as several chamber works. He won the Nordic Council Music Prize in 1978 for his opera Ratsumies.

Takashi Ōhara is a male Japanese voice actor who works for Ken Production. He has an older sister, Sayaka Ōhara, who is also a voice actress.

Timothy Lennart "Tim" Kopra is an engineer, a Colonel in the United States Army and a retired NASA astronaut. He served aboard the International Space Station as a flight engineer for Expedition 20, returning to Earth aboard Space Shuttle Discovery on the STS-128 mission on September 11, 2009. He returned to the ISS for the second time in December 2015, as part of Expedition 46 and as the Commander of 47.

Michael James Benton is a British palaeontologist, and professor of vertebrate palaeontology in the School of Earth Sciences at the University of Bristol. His published work has mostly concentrated on the evolution of Triassic reptiles but he has also worked on extinction events and faunal changes in the fossil record.