Mujo
In Bosnian use Mujo is primarily a hypocorism (informal short form) of Muhammad or Mustafa, though some register it as a legal given name in modern records.
Mujo itself is a diminutive; its semantic value comes from Muhammad/Mustafa meaning 'praiseworthy' or 'chosen'.
Mujo is a South Slavic/Bosnian colloquial form and does not appear as a classical Arabic given name in primary Arabic texts.
Yes; members of diaspora communities or those appreciating regional names sometimes use Mujo, but it retains a Bosnian cultural identity.
Mujo appears in Bosnian oral literature and anecdotal references but is not the formal name of major classical Islamic figures.