Flagship/Legends

A flagship was the primary command ship in a commander's fleet of ships and the one that the commander was aboard. As a result, both for the safety of the ranking officer and possibly for intimidation, the flagship was usually the most powerful ship available in the fleet, such as a Super Star Destroyer. However, it is interesting to note that this was not always the case, as Thrawn was known to have ships larger than an Imperial Star Destroyer in his fleet, yet made the Star Destroyer Chimaera his flagship. Similarly, Admiral Ackbar has never been recorded in commanding the Lusankya despite his position as commander of the New Republic Defense Force for many years, and Garm Bel Iblis commanded his old Dreadnaught Peregrine for years after joining the New Republic, despite its smaller size and firepower.

The flagship, such as Home One to the Alliance fleet in 3 ABY, was considered the command ship of the entire fleet. Significantly, a flagship could easily be changed in the middle of a deployment or even a battle, as the primary definition of a flagship was the ship that had the highest ranking command officer onboard, making it the command ship for the fleet. However, starfighters and other smaller ships such as the Millennium Falcon, even when carrying the highest ranked member of the fleet, were not usually considered flagships.

While throughout galactic history, flagships have traditionally been powerful battleships capable of slagging any other ship in combat, the New Republic and the Ssi-Ruuk developed different strategies in the use of starfighter carriers as flagships, such as the Endurance-class fleet carrier in the New Class. This was due to the more prevalent roles that starfighters played in the New Republic and Ssi-ruu navies respectively.

Sith Empire

 * Corsair - Naga Sadow's flagship / Flagship of the Sith Empire

Brotherhood of the Sith

 * Corsair - Exar Kun's flagship / Flagship of the Brotherhood

Sith Empire during the Jedi Civil War

 * Revan's flagship - Darth Revan's flagship / Flagship of the Sith Empire
 * Leviathan - Darth Malak's flagship / Flagship of the Sith Empire

Sith Triumvirate

 * Ravager - Darth Nihilus's flagship / Flagship of the Sith Triumvirate

New Sith Empire / Brotherhood of Darkness

 * Nightfall - Lord Kaan's flagship / Flagship of the Brotherhood

Stark Commercial Combine

 * Raptor - Captain Zur's flagship / Flagship of the Stark Commercial Combine

Chiss Ascendancy

 * Springhawk - Commander Mitth'raw'nuruodo's flagship / Flagship of Picket Force Two
 * Fell Defender - Commander Jagged Fel's flagship

Galactic Republic

 * Alliance I - Nomi Sunrider's flagship / Flagship of the Republic fleet at the Second Battle of Onderon during the Freedon Nadd Uprising
 * Reliance I - Captain Vanicus's flagship / Flagship of the Republic fleet at the First Battle of Empress Teta
 * Sojourn - Admiral Carth Onasi's flagship
 * Invincible - Senator Ranulph Tarkin's flagship / Flagship of Ranulph Tarkin's paramilitary
 * D-One - Captain Pakmillu's flagship / Flagship of Outbound Flight
 * Katana - Flagship of the Katana Fleet
 * Integrity - High Jedi General Obi-Wan Kenobi's flagship / Flagship of the Open Circle Fleet''
 * Mersel Kebir - Captain Jace Dallin's flagship / Flagship of the Rendili Home Defense Fleet
 * Impavid - High Jedi General Saesee Tiin's flagship
 * Prosperous - High Jedi General Saesee Tiin's second flagship

House Pelagia

 * Pelagia Star

Confederacy of Independent Systems

 * Malevolence - General Grievous's 1st flagship
 * Invisible Hand - General Grievous's 2nd flagship / Flagship of the Confederate Navy
 * Mersel Kebir - Flagship of the Rendili Home Defense Fleet

Trade Federation

 * Saak'ak - Trade Federation Viceroy Nute Gunray's flagship
 * Darkvenge - Vicelord Siv Kav's flagship / Flagship of Special Task Force One

Centrality

 * Wennis - Rokur Gepta's flagship / Flagship of the Centrality

Xim the Despot's Empire

 * Queen of Ranroon

Zann Consortium

 * Merciless - Tyber Zann's flagship / Flagship of the Consortium

Hapes Consortium

 * Song of War - Prince Isolder's flagship / Flagship of the Hapan Royal Navy
 * Dragon Queen - Tenel Ka's flagship / Flagship of the Hapan Royal Navy during Second Galactic Civil War
 * Kendall - Dukat Aleson Gray's flagship / Ducha AlGray's flagship / Flagship of the Heritage Fleet

Galactic Empire

 * Executrix - Moff Wilhuff Tarkin's flagship
 * Exactor - Darth Vader's flagship
 * Devastator - Lord Tion's flagship / Darth Vader's second flagship
 * Executor - Darth Vader's third flagship / Flagship of the Death Squadron / Flagship of the Imperial Navy
 * Admiral Giel's Super Star Destroyer - Admiral Mils Giel's flagship
 * Whelm - Flagship of the Azure Hammer Command in Sector Zero
 * Guardian - Fleet Admiral Gaen Drommel's flagship
 * Iron Fist - Warlord Zsinj's flagship
 * Lusankya - Ysanne Isard's flagship
 * Intimidator - Flagship of the Black Sword Command
 * Reaper - Grand Moff Ardus Kaine's flagship
 * Chimaera - Grand Admiral Thrawn's flagship / Flagship of Thrawn's fleet / Flagship of the Imperial Navy
 * Eclipse - Emperor Palpatine's flagship / Flagship of the Imperial Navy
 * Eclipse II - Emperor Palpatine's second flagship / Flagship of the Imperial Navy

Imperial Remnant

 * Vengeance - Inquisitorius Jerec's flagship
 * Gorgon - Admiral Daala's flagship / Flagship of the Maw Installation
 * Reckoning - Admiral Delak Krennel's flagship
 * Shockwave - Warlord Harrsk's flagship
 * Knight Hammer - Admiral Daala's second flagship
 * Emperor's Revenge - Carnor Jax's flagship
 * Doomgiver - Admiral Galak Fyyar's flagship
 * Relentless - Moff Disra's flagship / Grand Admiral Thrawn (impersonated by Flim)'s flagship
 * Chimaera - Grand Admiral Gilad Pellaeon's flagship / Flagship of the Imperial Navy
 * Right to Rule - Grand Admiral Gilad Pellaeon's flagship / Flagship of the Imperial Navy
 * "Bloodfin" - Grand Admiral Gilad Pellaeon's flagship / final flagship

Fel Empire / Darth Krayt's Galactic Empire

 * Imperious - Grand Admiral Morlish Veed's flagship / Flagship of the Fel Empire
 * Relentless - Admiral Dru Valan's flagship / Flagship of the Outer Rim Third Fleet

Alliance to Restore the Republic / Alliance of Free Planets / New Republic / Galactic Federation of Free Alliances

 * Home One - Admiral Ackbar's flagship / Flagship of the Rebel Alliance Fleet and New Republic Defense Fleet
 * Mon Remonda - General Han Solo's flagship / Flagship of the Solo Fleet
 * Rebel Dream - Minister of State Leia Organa's flagship
 * Defiance - Admiral Ackbar's flagship / Flagship of the New Republic Defense Fleet
 * Galactic Voyager - Admiral Ackbar's flagship / Flagship of the New Republic Defense Fleet
 * Intrepid - General Etahn A'baht's flagship / Flagship of the New Republic Fifth Battle Group
 * Intruder - Admiral Hortel Ossilege's flagship / Flagship of the Bakuran Defense Fleet
 * Peregrine - General Garm Bel Iblis's first flagship
 * Lusankya - General Wedge Antilles's flagship
 * Industrious Thoughts - General Lando Calrissian's temporary flagship / Flagship of the Diamala fleet
 * Yald - Commodore Brand's flagship
 * Champion - Brevet Admiral Glie'oleg Kru's flagship
 * Poesy - Commodore Mabettye's flagship
 * Elegos A'Kla - General Garm Bel Iblis's second flagship
 * Mon Mothma - General Wedge Antilles's second flagship / Flagship of Fleet Group Three
 * Bail Organa - General Garm Bel Iblis's third flagship / Flagship of Fleet Group Two
 * Mon Adapyne - General Keyan Farlander's flagship
 * Guardian - Chief of State Cal Omas's flagship / Flagship of the New Republic
 * Harbinger - General Garm Bel Iblis's fourth flagship
 * Right to Rule - Grand Admiral Gilad Pellaeon's flagship
 * Memory of Ithor - General Pash Cracken's flagship
 * Ralroost - Admiral Traest Kre'fey's flagship / Flagship of Fleet Group One and the Galactic Alliance Defense Fleet
 * Mon Mothma - Commodore Gavin Darklighter's flagship
 * Admiral Ackbar - Admiral Nek Bwua'tu's flagship / Flagship of the Galactic Alliance Fifth Fleet
 * Megador - Grand Admiral Gilad Pellaeon's flagship / Flagship of the Galactic Alliance Defense Fleet
 * Dodonna - Admiral Matric Klauskin's flagship / Admiral Tarla Limpan's flagship / Flagship of Operation Roundabout
 * Ocean - Admiral Cha Niathal's flagship / Flagship of the Blockade of Corellia
 * Anakin Solo - Colonel Jacen Solo's flagship / Flagship of the Galactic Alliance Guard
 * Blue Diver - Admiral Tarla Limpan's second flagship / Flagship of the Galactic Alliance Second Fleet
 * Galactic Voyager - Admiral Cha Niathal's flagship / Flagship of the Galactic Alliance Defense Fleet
 * Indomitable - Admiral Gar Stazi's flagship / Flagship of the Galactic Alliance Core Fleet and the Galactic Alliance Remnant
 * Alliance/Imperious - Admiral Gar Stazi's second flagship / Second Flagship of the Galactic Alliance Remnant

Ssi-ruuvi Imperium

 * Shriwirr - Flagship of the Ssi-ruuvi's invasion fleet in 4 ABY
 * Firrinree - Flagship of the Ssi-ruuvi's invasion fleet in 28 ABY

Hiromi Empire

 * Kuratcha - Flagship of the Hiromi (referred to as mothership)

Tof fleet

 * Merriweather - Flagship of the Tof invasion fleet

Duskhan League

 * Pride of Yevetha - Nil Spaar's flagship / Flagship of the Duskhan League

Yuuzhan Vong Empire

 * Da'Gara's worldship - Prefect Da'Gara's flagship / Flagship of the Praetorite Vong
 * Legacy of Torment - Commander Shedao Shai's flagship / Flagship of the advance Yuuzhan Vong fleet
 * Burning Pride - Deign Lian's flagship
 * Crèche - Commander Chine-kal Lah's flagship
 * Yammka - Supreme Commander Nas Choka's flagship / Flagship of the advance Yuuzhan Vong fleet
 * Exquisite Death - Commander Duman Yaght's flagship
 * Sunulok - Warmaster Tsavong Lah's first flagship / Flagship of the Yuuzhan Vong fleet
 * Kratak - Warmaster Tsavong Lah's second flagship / Flagship of the Yuuzhan Vong fleet
 * Domain Hul worldship - Supreme Commander Czulkang Lah's flagship
 * Domain Dal worldship - Warmaster Tsavong Lah's third flagship / Flagship of Yuuzhan'tar
 * Blood Sacrifice - Warmaster Tsavong Lah's fourth flagship / Flagship of the Yuuzhan Vong fleet
 * Kur-hashan - Commander B'shith Vorrik's flagship
 * Sacred Pyre - Commander Bhu Fath's flagship
 * Yammka's Mount - Warmaster Nas Choka's flagship / Flagship of the Yuuzhan Vong fleet
 * Shimrra's Citadel - Supreme Overlord Shimrra Jamaane's flaghsip / Flagship of the Yuuzhan Vong Empire

The Colony (Under the influence of the Dark Nest)

 * Bug One - Gorog Queen Lomi Plo's flagship / Flagship of the Dark Nest
 * Admiral Ackbar - UnuThul's second flagship / Flagship of the Colony

Five Worlds

 * Thrackan Sal-Solo - Flagship of the Five Worlds

Talon Karrde

 * Wild Karrde