| Nicholas Brown III | |
| Office: | Lieutenant Governor of Rhode Island |
| Term: | 1856–1857 |
| Governor: | William W. Hoppin |
| Predecessor: | Anderson C. Rose |
| Successor: | Thomas G. Turner |
| Birth Name: | Nicholas Brown III |
| Birth Date: | October 2, 1792 |
| Birth Place: | Providence, Rhode Island, United States |
| Death Place: | Providence, Rhode Island, United States |
| Spouse: | Abby Mason Caroline Matilda Clements |
| Children: | 5 |
| Alma Mater: | Brown University (1811) Litchfield Law School |
| Parents: | Nicholas Brown Jr. Ann Carter |
| Relatives: | John Carter Brown II (brother) Nicholas Brown Sr. (grandfather) |
Nicholas Brown III (October 2, 1792 – March 2, 1859) was the United States Consul to the Papal court from 1845 to 1853 and later was Lieutenant Governor of Rhode Island from 1856 to 1857, serving under Governor W. W. Hoppin.
Nicholas Brown III was born on October 2, 1792, in Providence, Rhode Island, the eldest of three surviving children born to Nicholas Brown Jr. (1769–1841), the namesake patron of Brown University, and Ann Carter, daughter of John Carter, a prominent printer in Providence.[1] His younger brother was John Carter Brown II (1797–1874). His grandfather was Nicholas Brown Sr. (1729–1791), brother of John Brown, Moses Brown, and Joseph Brown, who was a merchant and slave trader who co-founded the College in the English Colony of Rhode Island and Providence Plantations which is today known as Brown University.[2]
He graduated from Brown University, which was founded by his family, in 1811 and attended the Litchfield Law School.[3]
Nicholas Brown III died on March 2, 1859.
From 1845 to 1853, he was the United States Consul to the Papal court.[4] From 1856 to 1857, he served as Lieutenant Governor of Rhode Island, serving under Governor W. W. Hoppin.[5]
In 1820, Nicholas married his cousin, Abby Mason (1800–1822), daughter of James Brown Mason. After her death, he married Caroline Matilda Clements (1809–1879) in 1831. They had five children, including: