New Hampshire's 3rd congressional district is an obsolete district. It was organized from the state's at-large district in 1847. It was eliminated after the 1880 census. The last representative serving the district was Ossian Ray.

• Martis, Kenneth C. (1989). The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company.
• Martis, Kenneth C. (1982). The Historical Atlas of United States Congressional Districts. New York: Macmillan Publishing Company.
• Congressional Biographical Directory of the United States 1774–present

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