Named after Shawnee Indian chief Tecumseh (1768-1813), who  directed Indian resistance to white rule in the Ohio River valley. Name from dialogue. NCC from a computer display (DS9 Companion, Nemesis). The ST Encyclopedia speculates that the Tecumseh is an Excelsior-class vessel.

New Orleans-class

The Thomas Paine, under the command of Captain Rixx, was one of the ships that met the Enterprise-D at planet Dytallix B when an alien intelligence attempted to take over Starfleet Command in 2364. TNG Conspiracy.

Named after the American patriot and writer Thomas Paine. Name from dialogue. NCC and class from a computer display (Captain's Chair).

Named after the H.M.S. Thunderchild, a fictional British warship from H.G. Well's classic novel "The War of the Worlds". The Thunderchild was designed by Alex Jaeger. The appearances of the Thunderchild in MiaB and TotP were confirmed by Adam "Mojo" Lebowitz. NCC from CGI model (EAS, Fact Files). Name is a speculation of the ST Encyclopedia. Class comes from the ship's designer, Alex Jaeger.

Miranda-class

Named in honour of the many who died in the cause of Chinese freedom. The presence of the Tian An Men in DS9 Tears Of The Prophets was confirmed by John Gross and Karen Sickles of Digital Muse, the company that did the CGI work for this episode. Name from dialogue. NCC from a computer display (ST Encyclopedia). Class visually identified.

Name from shooting script of Star Trek: Nemesis.

Nebula-class

The T'Kumbra served on the front lines of the Dominion war. In early 2375, the vessel put in to station DS9 for repairs including an overhaul of the ship's warp core and upgrades to inertial damper systems. While at the station, several members of the ship's crew indulged Captain Solok's desire to challenge his former classmate, Benjamin Sisko, to the ancient Earth sport of baseball. The T'Kumbra team, composed entirely of Vulcan nationals, called themselves the Logicians. DS9 Take Me Out to the Holosuite.

Probably named after some important Vulcan. Name from dialogue. Class visually identified.

The Tolstoy was one of the 39 Federation ships destroyed by the Borg during the Battle of Wolf 359. TNG The Best of Both Worlds, Part 2.

Named after the Russian author Leo Tolstoy, who wrote "War and Peace". Name from dialogue. The ST Encyclopedia speculates that the Tolstoy is a Rigel-class vessel with the registry number NCC-62095.

The Tombaugh, under the command of Captain Blackwood, was assimilated by the Borg in 2362. VOY Infinite Regress.

Named after American astronomer Clyde William Tombaugh (1906-1997), who discovered the planet Pluto in 1930. Name from dialogue.

Merced-class

The Trieste was stationed near Starbase 74 and was unable to render assistance when the Enterprise-D was hijacked by the Bynars in 2364. The Trieste was some 66 hours away at the time. TNG 11001001. Data served aboard the Trieste prior to his assignment to the Enterprise-D. During Data's tour of duty on the Trieste, the ship once fell through a wormhole. TNG Clues. In 2368, the Trieste served as part of the tachyon detection grid to blockade Romulan ships supplying the Duras family forces in the Klingon civil war. TNG Redemption, Part 2.

Named after the bathyscaphe in which oceanographer Jacques Piccard explored Earth's Marianas Trench in the 1960s. A pre-production idea (Starlog TNG Magazine, Capt Sharpe) for a computer display says that the Trieste is a Yosemite-class vessel. Name from dialogue. NCC and class from a computer display (Captain's Chair).

The Tripoli was the ship that discovered the android Data at the remains of the Federation colony at Omicron Theta in 2338. The crew of the Tripoli activated Data. TNG Datalore. The ship was decommissioned and was relegated to a surplus depot in orbit around planet Qualor II. In 2368, the Tripoli was stolen by Romulan operatives. TNG Unification, Part 1. The ship was returned and recommissioned sometime prior to 2374. After a battle against the Dominion in 2374, the Tripoli reported 3 crewmembers KIA and 7 crewmembers MIA. DS9 In the Pale Moonlight.

Name from dialogue. NCC from computer display. The ST Encyclopedia speculates that the Tripoli is a Hokule'a-class vessel.

Named after Harry S. Truman (1884-1972), 33rd president of the United States who led his nation through the final stages of World War II and through the early years of the Cold War. Name from dialogue.

Oberth-class

Named after the Russian space pioneer Konstantin E. Tsiolkovsky. Picard and Data identified the ship as "S.S. Tsiolkovsky". On the other hand, the ship had a Starfleet NCC-registry, the crew wore Starfleet uniforms, and the Starfleet emblem was on its dedication plaque. The ship miniature was a re-dress of the Grissom from Star Trek III: The Search for Spock. Name from dialogue. NCC and class from dedication plaque (Starlog TNG Magazine, Capt Sharpe).