Johannes-Kepler-Sternwarte, Astronomical observatory in Linz, Austria.

The Johannes-Kepler-Sternwarte is an astronomical observatory on Freinberg hill in Linz with a computer-controlled telescope for observing the night sky. The facility allows visitors to explore celestial objects using modern equipment and techniques.

The Linzer Astronomische Gemeinschaft planned an observatory from its founding in 1947, observing first at the Diesterweg-Gymnasium tower (1959–1968) and in the city botanical garden (1969–1982). The observatory opened in 1983 as Volkssternwarte Linz and was renamed Johannes-Kepler-Sternwarte on its tenth anniversary in 1993, honouring the astronomer who lived in Linz from 1612 to 1626.

The name honours Johannes Kepler, who stayed in Linz from 1612 to 1626; the renaming came at the observatory's tenth anniversary. The site is run by the Linzer Astronomische Gemeinschaft, founded in 1947, whose members give public sky observations, guided tours, lectures and courses.

The observatory opens for guided tours on specific days, and visitors should check in advance when these are offered. It is best to visit on clear nights and bring warm clothing, as observations work best with minimal cloud cover.

The facility operates a secondary location in a nearby village that is used for observations away from the city's light pollution. This remote site allows for clearer views of distant stars and fainter celestial objects.