Flintstones costumes can be worn by trick or treaters for Halloween, as well as to costume parties at any time of the year. Costumes can be worn by men, women and children. It is also possible for a group of people to dress up as the Flintstone family or the entire cast of the show.

While many different Flintstones costumes are available online and in retail stores for several different characters, some simple costumes can also be created at home. Due to the unique garments worn by the Flintstone characters, few accessories and expensive add-ons are needed to create a convincing outfit that people will recognize.

Different colors and designs are required depending on the Flintstones character that is being portrayed. Fred Flintstone wears an orange toga-like suit with black spots and an oversized blue necktie. His wife Wilma has red hair, a white sun dress and large pearls around her neck. Barney Rubble wears a brown toga-like suit similar to Fred's, and Betty wears a blue sun dress and a black choker with a large gemstone.

A Fred Flintstone costume is advertised in celebration of the Flintstone's 50th year. Everything required for an authentic Fred Flintstone costume is included. It comes with an oversized black wig, a blue necktie, an orange polyester coat with black markings, matching orange cuffs, and giant shoes that look like Fred's bare feet. Costumes for other Flintstone's characters are also available.