Rolnick Observatory is an astronomical observatory in Westport, Connecticut, operated by the Westport Astronomical Society. It is named after Gerry Rolnick, a co-founder of the Westport Astronomical Society and the engineer who ground the reflective mirror in the telescope. The observatory is located at the highest elevation in the town. It was built upon the former BR-73 Nike missile site in the mid-1960s and has undergone several upgrades and refurbishments since then.