Chancellor's Farm (grid reference ST525525) is a 34.2-hectare (84.6 acre) biological Site of Special Scientific Interest just north of Priddy in the Mendip Hills, Somerset, notified in 1984.

The site, which is close to the Yoxter military range, is operated as a restricted-access nature reserve by the Somerset Wildlife Trust.

The soils include a mixture of wind-deposited silts and weathered material from the parent Carboniferous Limestone.

The grassland is a type characterised by Sweet Vernal Grass (Anthoxanthum odoratum), Red Fescue (Festuca rubra), Common Bent (Agrostis capillaris), Pignut (Conopodium majus) and Sorrel (Rumex acetosa).

Of particular interest is the abundance of Common Bluebell (Hyacinthoides non-scripta), a species rare outside woodland habitats in Somerset.