In the Insidious film franchise, what is the common name of the red-faced demon?

In the Insidious film franchise, the red-faced demon is commonly called the Lipstick-Face Demon.

The Lipstick-Face Demon is the malevolent entity connected with the Further, a supernatural realm explored in the Insidious films. Its red face, black eyes, and sharp features make it one of the franchise’s most recognizable visual designs.

The films do not always treat this label as a formal personal name. It is a descriptive name widely used by viewers and reference sources, while the character is also associated with the demon that seeks to possess Dalton Lambert in the first film.

Insidious was released in 2010 and was directed by James Wan. Patrick Wilson and Rose Byrne star in the first film as Josh and Renai Lambert. The franchise expands the mythology of astral projection, the Further, and psychic investigators Elise Rainier, Specs, and Tucker.