| Hankasalmi Observatory | |
| Organization: | Jyväskylän Sirius ry |
| Location: | Hankasalmi, Finland |
| Coords: | 62.2547°N 26.5964°W |
| Website: | http://murtoinen.jklsirius.fi/ |
| Telescope1 Name: | RC16 |
| Telescope1 Type: | 40 cm Ritchey-Chrétien telescope |
| Telescope2 Name: | RT300 |
| Telescope2 Type: | 300 cm radio telescope |
Hankasalmi Observatory (Finnish: Hankasalmen observatorio) is a remote-controlled astronomical observatory in Hankasalmi, Finland. It is owned and operated by astronomy club Jyväskylän Sirius ry. The observaory has a robotic 40 cm Ritchey-Chrétien telescope, an all-sky camera and a 3-meter radio telescope. The optical telescope is used mainly for pro-am research of variable stars and comets.