John Martin could refer to:
- John-A man in Xena's army in Ancient Greece, saying that Kira is his wife near Xena and Borias in Year-8 while in Hungary.
- John Martin (22nd century)-A alternate reality version of him in various forms of aliens.
- John Martin (alternate universe)-Captain of DS9/USS Defiant, not Benjamin Sisko. In that universe Typhuss is the boyfriend of Kira Nerys. That universe was destroyed.
- John Martin (2372)-Killed by the Klingons in 2372 on stardate 49011.4 during the First Battle of Deep Space 9.
- John Martin (Borg) killed by Worf-April 4th, 2063 (1ST)/(2ndST).
- John Martin arrested by Typhuss-Second Ba'ku incident, stardate 64758.2, June 3rd, 2394 John was later killed on June 10th by Admiral Kira after making threats about him having two wives.
- John Frankie Eyes Martin-A alternate reality version of him, a gangster and criminal.
- John Martin (Cardassian)-Due to a timeline change John was turned into Skrain Dukat (died on stardate 52902.0; 2375), Aamin Marritza (died in 2369, killed by Kainon and then Silaran Prin (died on stardate 50416.2; 2373) .
- John Martin (Reman)-Due to a timeline change John was turned into Vkruk in 2378 who served as Shinzon's Reman Viceroy. Killed by Riker in 2378.
- John Martin (Shinzon)-Due to a timeline change John (Martin/Branson) was turned into Shinzon and killed by Picard in 2378.
- John Martin (Jem'Hadar)-Due to a timeline change John (Martin/Branson) was turned into a Jem'Hadar on stardate 50049.3 in 2373, he was killed by the Defiant crew and Admiral Kira.
- John Martin (Son'a)-Due to a timeline change John (Martin/Branson) was turned into a Son'a first as Gallatin, then a Son'a officer killed by Picard, Typhuss and Data then Ru'afo in 2375.
- John Martin (Section 31)-Due to a timeline change John (Martin/Branson) was turned into Vice Admiral Matthew Dougherty, killed by Ru'afo and later Admiral Kira.
- John Martin (alternate timeline I)-A Lieutenant Colonel in the Confederation of Earth and Confederation Corps. Died in the first timeline, Q recreated the Confederation of Earth in a second timeline where it is restored as it was before. The Confederation of Earth lives again but in a new timeline that is different from the first one. (Star Trek: Confederation) Colonel John Martin was killed by Admiral Kira on stardate 4326.7 in 2402 when Typhuss was accidentally pulled into that universe by Q. (Star Trek: Confederation)
- John Martin (Wraith Todd)-A alternate reality version of him as Todd the Wraith. In 2394, John Martin was turned into a Wraith by Admiral Kira, John Martin was forced to live his days as a Wraith and not as a Human.
- John Martin (Yautja)-A alternate reality version of him as a Yautja.
- John Martin (Silik)-A alternate reality version of him as Silik a Suliban.
- The Alien (Xenomorph; Kane's son)-A alternate reality version of him as a Xenomorph on aboard the Nostromo.
- John Martin (Earth-71)-A alternate reality version of him as President of the Federation and put a ban on heroes and it put a strain on his friendship with Typhuss.
- Madred-A alternate reality version of him as the Cardassian Madred in 2369.
- John Martin (Tholian)-A alternate reality version of him as the Tholian aboard the ISS Enterprise (NX-01) in 2155 in the mirror universe.
- T-Rex (John Martin)-A alternate reality version of him as a dinosaur, a T-Rex in the Amazon rainforest on a uncharted plateau in the 1920s.
- Duras, son of Toral-The Klingon in the 22nd century, wants Kira Nerys.
- John Martin (Devidian)-A Devidian, a phase-shifting species.
- Arturis-John Martin as Species 116 named Arturis in 2374.
- Valen-John Martin as General Valen of the Annari species in 2377.
- John Martin (Cylon)-John Martin as a Cylon.
- John Martin (Vidiian)-John Martin as a Vidiian.
- Slar (John Martin)-John Martin as Slar aboard the USS Defiant in 2155. Later killed by Archer and Admiral Kira.
- Xenomorph Queen-John is the Xenomorph Queen on LV-426 in 2367.
- John Martin (Ghostface)-John Martin as a Ghostface killer in Scream 2022.
- Magh-John as the Klingon Captain Magh in 2154.
- John Martin (Romulan)-In the 22nd century as a Romulan during the Babel Crisis.
- John Martin (Xindi)-John Martin as a Xindi during the Xindi incident in 2153.
- Joker (Earth-89)-John Martin as Joker from Earth-89.
- John Martin (Tarkalean male)-Killed by T'Pol after getting sucked out the airlock in 2153.
- Raptor-John as a raptor on Isla Nublar, later killed by the T-Rex.
- 3 Borg drones-John as 3 Borg drones on the Ohniaka III outpost in 2369/2370 on stardate 46982.1
- John Martin (homeless man)-A version of John Martin living homeless on Earth in 2151.
- John Martin (Banea)-A version of John Martin as a Banea in 2371 when Tom Paris was accused of murder.
- John Martin (Species 8472)-John as Species 8472.
- John Martin (Lokirrim)-John Martin as a Lokirrim in 2377 on stardate 54238.3.
- John Martin (Harvester)-John as a Harvester alien during the War of 1996.
- John Martin (Harvester Queen)-John as a Harvester Queen during the War of 2016.
- John Martin (Elachi)-John as a Elachi on September 1st in 2151.
- John Martin (Tellarite)-John as a Tellarite called Skalaar in March 2153.
- John Martin (Edward Jellico)-John as Edward Jellico in 2286 and 1986.
- John Martin-John as Tolian Soran in 2371.
- John Martin-John working with Kenneth Dalby to kill Admiral Kira. In his mind Dalby is a Vice Admiral in some mad alternate reality in command of a Maquis Rebellion. Kenneth Dalby, Maquis murderer!
- John Martin-John as Vice Admiral William Ross then Matthew Dougherty in 2375 on the USS Bellerophon (NCC-74705), Intrepid-class starship. Section 31.
- Jonathan Carver-John as Jonathan Carver AKA Elliot Carver (James Bond: Tomorrow Never Dies).
- Jeremiah Hayes-Hayes is working with John to get Kira Nerys back.
- John Martin (identity theft)-John Martin claiming to be Vice Admiral Kira during battles with Starfleet. John and Donald Trump plan on stealing the Waverider or a Timeship. So John can travel back in time to be with Kira again and marry her.
- John Martin (Novan)-John as a male Novan on Terra Nova in 2151 still loves Kira and Laurel.
- John Martin-Helping the Son'a capture Gabrielle, Eve and Laurel (Sarah Darling, Candy Brooks).
- James Coolidge-Working with John Martin and James Martin to kill Eve.
- Dexter Remmick-Working with John Martin to get Laurel (Sarah Darling, Candy Brooks), Ellen Ripley and Kira Nerys in the year 2364 aboard the USS Enterprise-D.
- John Martin (Lysian/Romulan)-John Martin as a Lysian/Romulan, looking for his wife Laurel. To protect Lysian Central Command from Admiral Kira in 2368 on stardate 45494.2.
- John Martin (Suliban/Tholian)-John Martin as a Suliban and Tholian looking for Kira Nerys, Eve and Laurel in 2152 during a mission where Archer's Enterprise found a Earth vessel from the 31st century.