Ayot St Peter is a village and civil parish in the Welwyn Hatfield district of Hertfordshire, England, about two miles north-west of Welwyn Garden City. According to the 2001 census it had a population of 166. At the 2011 Census the population including the nearby Ayot Green and Ayot St Lawrence was 245.
Coordinates: 51°49′15″N 0°14′00″W / 51.82083°N 0.23333°W