17 hours ago, HappyDaze said:From Wookieepedia's Canon entry on Jango:
Jango Fett was born in the years prior to the Invasion of Naboo.[1] He claimed to have been born on the planet Concord Dawn,[2] a Mandalorian world,[8] but the exact authenticity of this claim was unknown. He wore Mandalorian armor after becoming a bounty hunter and assassin for hire,[1] a fact that led officials of Mandalore to disavow any connection to Fett, claiming he was simply a bounty hunter who somehow stole an artifact from their planet's troubled past.
I think that quote makes it quite obvious that he was a Mandalorian, though?