Samuel Dinsmoor (July 1, 1766 – March 15, 1835) was an American teacher, lawyer, banker and politician from New Hampshire.

[1] He graduated from Dartmouth College in 1789,[2] worked as a teacher, studied law and was admitted to the bar.

[12] During his tenure, new manufacturing businesses were incorporated, railroads and banks flourished, and the first free public library in the United States was established in Peterborough.

[16] He retired from political life and entered the private sector, serving as the first president of the Ashuelot Bank in Keene.

[17] Dinsmoor died in Keene, Cheshire County, New Hampshire, on March 15, 1835 (age 68 years, 257 days).