SSN 765 Was the third ship of the U.S. Navy to be named for Montpelier, Vermont. The contract to build her was awarded to Newport News Shipbuilding and Dry Dock Company in Newport News, Virginia on February 6, 1987, and her keel was laid down on May 19, 1989. She was launched on August 23, 1991, sponsored by Mrs. Nancy Hayes Sununu, and commissioned on March 13, 1993, with Cmdr. Victor Fiebig in command.

In March/April 1995 USS Montpelier was originally scheduled to deploy as part of the USS Theodore Roosevelt Battle Group, her mission tasking was changed immediately prior to deploying to allow the ship to conduct a wide variety of independent operations exercising the ship's multi-mission capabilities while in the Mediterranean. On two separate missions, the nuclear attack submarine participated in Sharp Guard, involving ships from several countries enforcing sanctions against the Federal Republic of Yugoslavia.

January 10, 2003 SSN 765 departed Naval Station Norfolk for a scheduled deployment, with the USS Harry S. Truman Battle Group, in Mediterranean Sea.

March 19, By order of U.S. President George W. Bush, four ships and two submarines currently assigned to the U.S. Navy’s 5th Fleet launched 42 Tomahawk Land Attack Missiles (TLAMs) in support of Operation Iraqi Freedom. The four ships are USS Donald Cook (DDG 75) and USS Cowpens (CG 63) in the Red Sea, along with USS Milius (DDG 69) and USS Bunker Hill (CG 52) in the Arabian Gulf. USS Cheyenne (SSN 773) and USS Montpelier were the submarines involved in the Tomahawk launches.

July 10, USS Montpelier returned to homeport after a six-month underway period in support of Operation Iraqi Freedom. Deployed to the U.S. European Command and U.S. Central Command areas of operation, she was directly involved and conducted strike operations into Iraq, launching 20 Tomahawk cruise missiles during the deployment, including the opening round of actions against Iraq. U.S. submarines launched approximately 30 percent of the more than 800 Tomahawk cruise missiles fired in Operation Iraqi Freedom.

February 13, 2004 Cmdr. Mark E. Davis Friday relieved Cmdr. William J. Frake as commanding officer of USS Montpelier.

August 30, 2005 SSN 765 returned to Naval Station Norfolk from a training deployment.

February 16, 2006 Chief of Staff for Submarine Force U.S. Atlantic Fleet (SUBLANT), Capt. John Daugherty, visited USS Montpelier to observe the successful testing of the AN/BYG-1 Combat Control Systems. She performed in-port tests for the new fire control and sonar system. At-sea testing with Tactical Tomahawk final up evaluation is scheduled for March. She is one of four submarines in the fleet that have received the AN/BYG-1 modernization.

June 23, Cmdr. Christopher L. Harkins relieved Cmdr. Mark E. Davis Friday as CO of the Montpelier during a change of command ceremony at Naval Station Norfolk.

April 6, 2007 Capt. David M. Kriete relieved Capt. James G. Foggo as Commander, Submarine Squadron (SUBRON) 6 in a ceremony on board the Montpelier.

November 5, USS Montpelier departed Norfolk for a scheduled deployment with the USS Hary S. Truman Carrier Strike Group (CSG).

November 24, SSN 765 pulled to Souda Bay, Crete, Greece, for a routine port call.

April 15, 2008 The sub pulled to Souda Bay once again, for a brief port visit, before returning home.

May 5, USS Montpelier returned to homeport after a six-month underway period.

July 25, Cmdr. Mark B. Benjamin relieved Cmdr. Christopher L. Harkins as commanding officer, during a change-of-command ceremony on Naval Station Norfolk's Pier 3.

May 29, 2009 USS Montpelier departed Norfolk for a scheduled deployment.

November 25, The Montpelier returned home after a six-month deployment. She travelled more than 20,000 miles and visited Brest and Toulon, France; Bahrain; and Diego Garcia.

February 5, 2010 SSN 765 entered the Portsmouth Naval Shipyard in Kittery, Maine, for planned maintenance and modernization.

July 26, The Improved Los Angeles-class submarine returned to the fleet eight days earlier than projected. The work, which took about 640,000 man-hours, included changing the submarine's buoyancy characteristics and upgrading its sonar capabilities.

November 4, Cmdr. Thomas A. Winter relieved Cmdr. Mark B. Benjamin as CO of the Montpelier during a change-of-command ceremony on board the sub at Naval Station Norfolk's Pier 14.

November 5, Vice Adm. John M. Richardson relieved Vice Adm. John J. Donnelly as Commander, Submarine Forces/Submarine Force Atlantic/Allied Submarine Command during a change-of-command and retirement ceremony, held onboard the Montpelier.

April 27, 2011 USS Montpelier departed Naval Station Norfolk for a brief underway to conduct testing and training.

August 30, The Montpelier recently pulled into Haakonsvern naval base for a port visit to Bergen, Norway. SSN 765 departed Norfolk earlier this month for a scheduled deployment.

January 30, 2012 USS Montpelier pulled into HMNB Clyde at Faslane, Scotland, for a routine port call.