Sunriver Observatory, Astronomical observatory in Sunriver, Oregon, United States.

The Oregon Observatory is an astronomical observatory in Sunriver, Oregon, operated by the not-for-profit Sunriver Nature Center & Observatory near Sunriver Resort. As of 2013 it held twenty-three telescopes, thirteen of them 10 inches (25 cm) or more in aperture. It was renamed the Oregon Observatory at Sunriver in July 2012.

The facility became known as Oregon Observatory at Sunriver starting in 2012, when it joined the Sunriver Nature Center organization. This partnership helped establish the site as a major educational resource for the region.

The observatory serves as a gathering place where school groups and families connect with astronomy through hands-on classes and workshops. Visitors can explore the night sky directly through the telescopes with guidance from knowledgeable instructors.

The observatory stands near Sunriver Resort in central Oregon, and its telescopes are set up for evening sky viewing, with sessions depending on clear weather. Attendance reached about 10,000 visitors a year around 2012, so groups may find the site busy in peak periods. Check conditions before travelling, since viewing is only possible when the sky is clear.

By 2013 the observatory counted twenty-three telescopes, thirteen of them 10 inches (25 cm) or larger, up from eleven in 2011. The mix of apertures lets visitors compare views of the same object through different instruments. The site was renamed Oregon Observatory at Sunriver in July 2012, when attendance was about 10,000 visitors a year.