Nightside

Nightside may refer to:
 * Nightside with Dan Rea, talk radio show hosted by Dan Rea
 * The Nightside, hosted by Mark Elliot
 * NBC Nightside, an American overnight television news program on NBC
 * Nightside (book series), a series of fantasy-noir novels by Simon Green
 * Nightside (comics), a fictional character in the Marvel Universe
 * Nightside (film), a 1980 television pilot starring Doug McClure
 * Night side of a planetary body, divided from the daylit side by the terminator (solar)