Trilogy of Terror may refer to:
Films Trilogy of Terror (Trilogia do Terror), 1968 Brazilian horror film by José Mojica Marins Trilogy of Terror, 1975 American horror film Trilogy of Terror II, 1996 American horror film (sequel)
Other Trilogy of Terror (Blind Illusion album), the second demo album by thrash metal band Blind Illusion
See also "Trilogy of Error", a 2001 episode of The Simpsons "Terrifying Tri-State Trilogy of Terror", a 2013 episode of Phineas and Ferb