Nighthawk is the name of several fictional characters appearing in American comic books published by Marvel Comics. There have been seven versions of the character: two supervillains-turned-superheroes from the mainstream Marvel Universe continuity (Earth-616), Kyle Richmond and Tilda Johnson ; two S.H.I.E.L.D. agents, Joaquin Pennyworth and Jackson F. "Jack" Norriss; and five from alternate universes, who belonged to various incarnations of the Squadron Supreme, including the Kyle and Neal Richmond of Earth-712, and an African-American version of Kyle Richmond from Earth-31916 who primarily kills white supremacists and mentors Tilda upon travelling to Earth-616; after his death, a simulacrum of him is created by Mephisto and programmed by the Power Elite to serve as a member of the Squadron Supreme of America, under the command of Phil Coulson.

The Squadron Supreme is a superhero team appearing in American comic books published by Marvel Comics, of which there are several notable alternate versions. The original team was created by Roy Thomas and John Buscema, derived from the previously created supervillain team Squadron Sinister.