Boba Fett is associated with two main symbols on his costume: one on his chest armor and one on his shoulder armor. We have compiled a visual guide to the symbols used in his overall design to help educate and inform fans. For more visuals, please see our image gallery for Boba Fett's iconography and his overall costume.
Those are all one interpretation. After Boba Fett's debut circa 1978/1980, the story of the Mandalorians has evolved and even changed a few times (e.g. Expanded Universe vs. Legends). The bottom line is that the sign/symbol/icon/logo also represents things like the Mandalorian crest, the Fett clan, and Journeyman Protector logo.
This is found on the right front of Boba Fett's chest armor. The screen-accurate colors are Chevy Red Orange, Midnight Blue, and Ivory. (Helmet nod to Rafal Works for figuring that re-creation values.)
Enlarged reproduction made by this site, the Boba Fett Fan Club. This is a generalization and not screen accurate.
Vectorized by Jayse. Improved and hosted by the Boba Fett Fan Club.
This is found on Boba Fett's left shoulder armor. The only exception is "Star Wars: Special Edition" where it's a known omission of the art department during film production to have dressed the shoulders backwards, having it on his right instead.
"The traditional Mandalorian crest, frequently mistaken for a Bantha Skull, bears a striking resemblance to the skull of a male mythosaur. But in truth, the symbol was actually adopted in reverence to a legendary Mandalorian combat-training master." (Source: "History of the Mandalorians," Star Wars Insider #80)