David Matthew Gallaher (born June 5, 1975) is an American video game writer, comics writer, podcaster and editor, known primarily for his work in comics and video games: Tom Clancy's Ghost Recon Breakpoint, Vampire: The Masquerade, Yours Truly, Johnny Dollar, High Moon, Box 13, The Only Living Boy and 'The Only Living Girl'.

[2] During Boy Scout summer camp in '88, Gallaher and became an avid reader of Captain America, Fantastic Four, West Coast Avengers, and Speedball.

[2] A graduate of Frederick High School, Gallaher attended Hood College in Maryland, double-majoring in both Special Education and Psychology.

He also taught a comics class to seniors and juniors with the work of Garth Ennis and Warren Ellis included as part of the curriculum.

After a week, he was hired as the department production editor, editing digital comics, training interns, researching material, writing character biographies and developing websites.

[9] In July 2011, Gallaher worked as consulting editor on a broad range of titles for Kodansha including Sailor Moon, Gon, Negima and Arisa.

[13] In October 2019, Gallaher and his studio were hired by the Children's Tumor Foundation to release a series of comic strips to promote the awareness of neurofibromatosis.