Baldemar \b(a)-lde-mar, bal-demar\ as a boy's name is of Old German origin, and the meaning of Baldemar is "bold and renowned; famous ruler". Saint Baldomar was a blacksmith who became a monk, and is the patron saint of blacksmiths, a profession much less common than it used to be. Baldomero is the Spanish form.

Baldemar has 4 variant forms: Baldomar, Baldomero, Baumar and Baumer.