Uknö is a village in Västervik Municipality, in Kalmar County, Sweden. Uknö lies at 5 m above sea level. The nearest city is Västervik, 18.0 km to the southeast. Among the landmarks around are Lofta Church (5.7 km), Loftahammar Church (8.8 km) and church of Östra Ed (14.5 km).