Tarmo Oja (born 21 December 1934 in Tallinn, Estonia) is a professor in astronomy at Uppsala University[1] who studies galactic structure and variable stars. He was the director at the Swedish Kvistaberg Station of the Uppsala Observatory from 1970 until his retirement in 1999.
As a senior professor he continued his observations (work) at the observatory at Kvistaberg until the spring of 2006, when he moved (back) to Uppsala together with his wife Silvi.
In 2001, Estonian President Lennart Meri awarded Oja the Order of the White Star V Class for his contribution to science. The asteroid 5080 Oja, discovered at the Kvistaberg Station, was named in his honor in 1992.