Several outlets have published rankings of the best horror movies of the 21st century, with some lists including the top 10 horror thrillers and others featuring broader rankings of up to 100 films. The rankings appear to vary, with different outlets compiling lists of the top horror movies of the last 25, 40 years, or the entire 21st century. The lists seem to cater to different audiences, including general viewers and specific demographics like Gen Z.