Samuel Larned (June 22, 1788 – December 10, 1846) was an American merchant and diplomat from Providence, Rhode Island.^[1] Born on June 22, 1788, Larned's father was Samuel Larned and his grandfather was William Larned.^[1] Before 1820, he served at Cádiz, Spain. as U.S. Consul and merchant.^[1] He returned to Rhode Island in 1820. He was appointed to the Secretary of Legation to Chile by President James Monroe in 1823.^[1] He served as the second United States Minister Plenipotentiary to Chile from 1828 to 1829. He served as the United States Minister Plenipotentiary to Peru from 1828 to 1837.^[2] He was also the Charge d' Affaires to Bolivia beginning in 1828. During his 23 years as a diplomat, he settled conflicts between countries, navigated wars and revolutions, negotiated treaties, and ensured the rights of Americans and their property.^[1]

On October 1, 1837, Larned married Katharine Celia Greene (1816-1887), the daughter of Albert Collins Greene. Their daughter, Katharine Celia Larned was born in 1840.^[1][3] Larned died on December 10, 1846. Katharine married Judge Richard Ward Greene, her father's cousin, in 1851.^[1][3] Katharine died in 1887.^[3]