Troutbeck Park is a farm to the north of Troutbeck village in South Lakeland, Cumbria. In 1923, there was a risk of it being sold for development, so Beatrix Potter bought it and kept it as a working farm. She bred Herdwick sheep there, and became president of the Herdwick Sheep Breeders' Association.
It was one of the fourteen farms which Beatrix Potter left to the National Trust when she died in 1943.