Ruhnu Airfield (ICAO: EERU) is an airfield on Ruhnu island in Estonia. The airfield is situated to the south of the island, 37 nautical miles (69 km; 43 mi) southeast of Kuressaare, near the village of Ringsu. It has no IATA airport code.
The airfield has one runway, 13/13 that is 600 m × 20 m (1,969 ft × 66 ft) with a grass surface. The runway has no landing lights. The airfield is managed by AS Tallinna Lennujaam Kuressaare lennujaam (Kuressaare Airport).