Gilliland is a surname and may refer to:

  • Alexis A. Gilliland (born 1931), American science fiction writer and cartoonist
  • Allan Gilliland (born 1965), Canadian composer.
  • Brent Gilliland, bass guitarist for American rock band The Sammus Theory
  • Butch Gilliland (born 1958), American race car driver
  • Charles L. Gilliland (1933–1951), American soldier and Medal of Honor recipient
  • David Gilliland (born 1976), American race car driver
  • Edwin R. Gilliland (1909–1973), American chemical engineer
  • John Gilliland (1935–1998), American radio broadcaster and documentarian
  • Kaitlyn Gilliland, New York City Ballet dancer
  • Richard Gilliland (born 1950), American television and movie actor