Little Wittenham SSSI is a 68.9-hectare (170-acre) biological Site of Special Scientific Interest north-east of Didcot in Oxfordshire.

[1][2] It is also a Special Area of Conservation.

[3] This site, which is managed by the Earth Trust, consists of woods, grassland, scrub and ponds on the slope of a hill next to the River Thames.

Flora include the nationally scarce greater dodder, and there is a rich assemblage of amphibians, including one of the largest populations in the country of the great crested newt, which is a priority species of the Biodiversity action plan.

[4]