New Hampshire historical markers

The U.S. state of New Hampshire has placed historical markers since 1958 at locations that are deemed significant to New Hampshire history. The New Hampshire Division of Historical Resources (DHR) and the Department of Transportation (DOT) are jointly responsible for the historical marker program. The program is authorized by RSA 227 C:4, X, and RSA 236:40 to 44. As of February 2025, DHR has installed 291 markers, although several have been retired or refurbished.