The Enterprise-D was to rendezvous with the Havana after studying the Bersallis firestorms of 2369. TNG Lessons.

Named after the capital city of Cuba. Name from dialogue. The ST Encyclopedia speculates that the Havana is an Istanbul-class vessel with the registry number NCC-34043.

Named after planetary scientist and astronomer Eleanor Helin. According to Bjo Trimble's Concordance, the Helin appeared on a computer display.

Named after American writer Ernest Hemingway (1899-1961), who won the Nobel Prize for literature in 1954. Name from script.

Named after the Greek goddess Hera, wife of Zeus and queen of the gods. Name from dialogue. The ST Encyclopedia speculates that the Hera is a Nebula-class vessel with the registry number NCC-62006.

Hermes-class

Name, NCC, and class from a screenshot. This computer display is from the Starfleet Technical Manual. Some will correctly point out that the part with "HERMES CLASS" was cut off due to the round display, but I'm not that pernickety.

In 2368, the Hermes 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.

Name from dialogue. NCC from a computer display (ST Encyclopedia). The ST Encyclopedia speculates that the Hermes is an Antares-class vessel.

The Hispanola, under the command of Capt. J. Gump, visited the Sol system in 2370. Her next stay was at station Deep Space 9 on stardate 47553.2. DS9 Whispers.

Named after the ship from Robert Louis Stevenson's novel "Treasure Island". Name from a computer display.

Nebula-class

On stardate 51408.6, the Honshu was attacked and destroyed by an attack wing of Cardassian destroyers. Captain Benjamin Sisko and Gul Dukat, who were aboard the ship bound for a special hearing on Dukat's case on Starbase 621, managed to escape in a shuttlecraft. At least 12 crewmembers of the Honshu survived the ship's destruction and were rescued by the starship Defiant. DS9 Waltz.

Named after the largest of the islands of Japan. Name from dialogue. Class visually identified. NCC from screenshot.

Constitution-class

The Hood was one of five starships that participated in the disastrous test of the M-5 multitronic unit in 2268. TOS The Ultimate Computer.

Name from dialogue. Class visually identified. According to the Starfleet Technical Manual, the Hood's registry number is NCC-1707.

Excelsior-class

When William Riker was First Officer of the Hood, he refused to let Captain DeSoto beam down to Altair III during a crisis. TNG The Pegasus. In 2364, the Hood, under the command of Captain Robert DeSoto, rendezvoused with the Enterprise-D to transfer Cmdr. Riker to his new assignment. It also had Admiral McCoy aboard, who wanted to inspect the sickbay of the new Enterprise. TNG Encounter at Farpoint. The Hood was one of the starships sent to the Romulan Neutral Zone border in preparation for a possible battle after Starfleet received warnings of a Romulan build-up at planet Nelvana III in 2366. The warnings, from Romulan defector Alidar Jarok, were later found to be baseless. TNG The Defector. The Hood was scheduled to join the Enterprise-D on a terraforming mission on planet Browder IV in 2366. TNG Allegiance. The Hood intercepted the Enterprise-D in the Hayashi system to deliver Tam Elbrun and new orders for the Enterprise to proceed to Beta Stromgren for the encounter with Tin Man in 2366. TNG Tin Man. In 2368, the Hood 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. In 2370, Capt. Picard mentioned to mercenary leader Arctus Baran that Will Riker served aboard the Hood prior to his assignment aboard the Enterprise-D. TNG Gambit, Part 1. The Hood fought in the combined fleet of allied Alpha Quadrant forces that invaded Cardassian space at the Chin'toka-System in late 2374. It escorted the Defiant during the run on the moon. DS9 Tears of the Prophets. In 2379, the Hood was part of battle group Omega. The battle group was ordered to convene in Sector 1045 to stop the Reman warbird Scimitar. Star Trek: Nemesis.

The Hood was a re-use of the Excelsior model built for Star Trek III: The Search for Spock. The footage of the Hood flying alongside the Enterprise-D created for the TNG episode "Encounter at Farpoint" was re-used numerous times to represent other Excelsior-class vessels. According to John Gross and Karen Sickles of Digital Muse, the company that did the CGI work for DS9, the Hood's NCC in DS9 Tears Of The Prophets was NCC-42768, which is actually the Lakota's. Name from dialogue. NCC from a computer display (Captain's Chair). Class visually identified.

Hope-class

The Hope-class was designed by Bill George.

Ambassador-class

Name and class from dialogue. The ST Encyclopedia speculates that the Horation's registry number is NCC-10532.

One of the first deep-space exploratory vessels launched by the United Federation of Planets. The Horizon visited planet Sigma Iotia II in 2168. The Horizon was destroyed shortly thereafter, transmitting a distress call by conventional radio that did not reach Federation space until 2268. It was later found that Horizon personnel had left a book entitled "Chicago Mobs of the Twenties" on the planet, causing severe cultural contamination. The Horizon mission predated the establishment of Starfleet's Prime Directive of non-interference. TOS A Piece of the Action. Keiko O'Brien had a model of this ship in her class room aboard Deep Space 9. DS9 The Nagus. Another model of the Horizon was in Benjamin Sisko's office aboard Deep Space 9. DS9 If Wishes Were Horses.

The Horizon was designed by Matt Jefferies and built by Greg Jein. Name from dialogue. NCC from Sisko's desk model (The Art of Star Trek). The ST Encyclopedia speculates that the Horizon is a Daedalus-class vessel.

Named after an American aircraft carrier that fought at the Battle of Midway in World War II, as well as for the recovery vessel for the Apollo 11 moon landing mission. Name from dialogue. NCC from a computer display (ST Encyclopedia). The ST Encyclopedia speculates that the Hornet is a Renaissance-class vessel.

Kirk and O'Shea identified the ship as "S.S. Huron". On the other hand, the ship had a Starfleet NCC-registry, the crew wore Starfleet uniforms, and "U.S.S. Huron" was painted on the ship's hull. Name from dialogue. NCC from a screenshot (Mighty Monkey of Mim). Picture from Startrekanimated.com.