Wellow is a village in Nottinghamshire, England. According to the 2001 census it had a population of 444, increasing to 470 at the 2011 census, but falling slightly to 463 at the 2021 census. It has a village green and a maypole, which is still in use. The parish church of St Swithin is 12th century, which was restored, with a new chancel, in 1878–9. On the east and south sides of the village are the remains of a defensive ditch, which originally encircled the village.