Allhallows is a village and civil parish on the Hoo Peninsula in Kent, England. Situated in the northernmost part of Kent, and covering an area of 23.99 km², the parish is bounded on the north side by the River Thames, and in the east by the course of Yantlet creek, now silted up. At the 2001 census the parish had a population of 1,649.
Allhallows village is in two parts: the ancient Hoo All Hallows and the 20th century holiday colony Allhallows-on-Sea.
Near to the village of Allhallows is Windhill Green. There used to be a hamlet on the site of Windhill Green, but all of the original buildings have been demolished. The name remains on the Ordnance Survey maps.