The High Galactic Alphabet (abbreviated HGA), High Galactic script, or simply High Galactic was a form of writing used in the galaxy. Unlike the more common Aurebesh, which was widely used by all levels of society, High Galactic was typically adopted only by officials and the wealthy, and was often associated with snobbery.
It saw use during the Clone Wars and the Galactic Civil War. It was notably used in certain Galactic Basic Standard holofeeds displayed on the planet of Coruscant, during the time of it being the capital of the Galactic Empire.
Algebraic formulas were often written down using High Galactic letters.
Janyor of Bith's book on propaganda featured examples of persuasive artwork that used both Aurebesh and High Galactic copy executions, and Janyor noted that disparate versions of Saespo Choffrey's Sienar Fleet Systems mural using both of these writing systems were distributed through the outlying neighborhoods and residential districts of Capital City on Lothal.
Bottles containing the Nabooan wine called Domaine de la Maison sur le Lac featured High Galactic characters on their stickers.
The tractor beam information gauge, as it appears in the original A New Hope (top) and the 2004 DVD version (bottom)
The original version of the 1977 movie Star Wars: Episode IV A New Hope contained occurrences of the real-world Latin alphabet. Although those labels were later edited into Aurebesh in the DVD release, the Expanded Universe kept featuring Roman letters in in-universe situations. Eventually, those occurrences were identified as the High Galactic alphabet in The Written Word, a StarWars.com Hyperspace article written by John Hazlett. However, the Expanded Universe has since been rebranded Star Wars Legends, and is therefore no longer considered canon.
Regardless, Roman writings still appeared in "The Gungan General" and "Senate Murders," two episodes of the Star Wars: The Clone Wars canon television series. The novel Heir to the Jedi by Kevin Hearne recanonized the name High Galactic.
In the 2015 short comic Star Wars Annual (2015) 1 by Marvel Comics, a number of holofeed writings were mistakenly written in a Roman typeface which only mimicked real Aurebesh. When asked about it by a fan, Jordan D. White, editor for Marvel Comics, admitted there had been a mistake. However, he also endorsed the in-universe identification of those writings as High Galactic.
- Rebel Journal by Ezra Bridger
- Sabine My Rebel Sketchbook
- Rey's Survival Guide
- Star Wars Propaganda: A History of Persuasive Art in the Galaxy
- Poe Dameron: Flight Log
- Star Wars: The Rebel Files
- The Last Jedi: Bomber Command
- Solo: A Star Wars Story: Tales from Vandor
- Star Wars: Smuggler's Guide
- The Star Wars Book