Thriplow Peat Holes is a 12.2-hectare (30-acre) biological Site of Special Scientific Interest north-east of Thriplow in Cambridgeshire.

[1][2] The site has rare alder carr and fen habitats which have a wide variety of invertebrates, which is enhanced by ditches and ponds.

The main vegetation is alder, ash, willow and guelder rose.

[1] The site is private land with no public access.