Seth Low Pierrepont (1884–1956) was a United States diplomat and politician.

Some of this article's listed sources may not be reliable. (July 2023)

Born in Brooklyn, New York on December 25, 1884 to Henry Evelyn Pierrepont, a merchant, and Ellen Low, Pierrepont was one of six children.^[1] He was the nephew of Seth Low, mayor of New York City and President of Columbia University. In 1907 he graduated from Columbia University with a bachelor's degree.^[2]

In the early 1930s, Pierrepont purchased the land that would later become Seth Low Pierrepont State Park Reserve. He created a new lake that he later named Lake Naraneka from an "impassable" swamp on the property. He stated: "We are calling it Lake Naraneka after one of the Indian chiefs who signed the deed to the town of Ridgefield."^[7] He later complained to Connecticut state authorities when he found the name "Pierrepont lake" being used on maps.

In his will, Pierrepont allocated 321 acres of the property to become Seth Low Pierrepont State Park Preserve, as a gift to the Connecticut State Park and Forest Commission. He also expressed his desire for his remaining family to give the remainder of the property to the state, but that never ended up happening as his widow decided to sell it to developers.^[8][7]

In 1909, Pierrepont married Nathalie Chauncey.^[9] He died in 1956 and is buried in Green-Wood Cemetery in Brooklyn.^[2]