1966 United States Senate election in New Hampshire

The 1966 United States Senate election in New Hampshire took place on November 8, 1966. Incumbent Democratic Senator Thomas J. McIntyre won re-election to a full term, having first been elected in a special election in 1962.

Primary elections
Primary elections were held on September 13, 1966.

Candidates

 * Thomas J. McIntyre, incumbent United States Senator

Candidates

 * Harold W. Ayer, former state employee
 * Doloris Bridges, unsuccessful candidate for Republican nomination for U.S. Senate in 1962 special election
 * Lane Dwinell, former Governor
 * William R. Johnson, former chairman of the New Hampshire Republican Party
 * Wesley Powell, former Governor
 * Harrison R. Thyng, former United States Air Force Brigadier General