Chauncey Langdon (November 8, 1763 – July 23, 1830) was an American politician, lawyer and judge.

Pursuing classical studies, he graduated from Yale College in 1787, where he was a member of Brothers in Unity.

[1] He then studied at the Litchfield Law School and with Judge Sylvester Gilbert, of Hebron, Connecticut, and was admitted to the bar.

[2] He received an honorary degree at Middlebury Collegein Vermont in 1803 and was a trustee from 1811 until his death.

[5] He married Lucy Nona Lathrop Langdon on April 7, 1789.