Ka-Dar Observatory, Astronomical observatory in Kuzminskoye, Russia.

The Ka-Dar Observatory is a private astronomical observatory in the village of Kuzminskoye near Barybino, Moscow Oblast, founded in 2004 by the Ka-Dar scientific center. Its equipment includes a Meade 14-inch telescope with a 350 mm aperture and 3500 mm focal length, a Meade 8-inch, a Vixen 103 mm APO, an ED80, and an Astrosib RC500 with a 500 mm aperture, along with SBIG STL-11000M and FLI Proline 16803 CCD cameras. A weather station operates on the site.

The Ka-Dar Observatory opened on 8 June 2004, the day of the transit of Venus, in Kuzminskoye near Barybino, Moscow Oblast. On 23 September 2005 the Minor Planet Center assigned it code B05, listing it among observatories able to make precise astrometric observations of small Solar System bodies. In 2006 it took part in expeditions to observe a total solar eclipse and worked with PulKON at the National Observatory of Bolivia in Tarija.

The observatory is open to amateur astronomers and anyone interested in observing the night sky, and it runs night excursions on site. Its name was given to asteroid (16711) Ka-Dar. The scientific centre Ka-Dar was an official sponsor of Astrofest, the largest astronomy gathering in the former Soviet Union, for three consecutive years, and co-organised its research conference.

The location is accessible by public transportation from central Moscow and offers observation sessions at scheduled times throughout the year. Visitors should check in advance when open viewing times are available and what conditions to expect on site.

An asteroid, (16711) Ka-Dar, is named after the observatory. The site also hosts Russia's first amateur weather station with professional equipment, broadcasting live meteorological data. The observatory received code B05 from the Minor Planet Center in 2005.