The surname Baldoni is of patronymic origin, derived from the personal name Baldo, an abbreviated form of Germanic names such as Baldwin, Baldoin or Baldus. The Germanic element bald- means "bold", "brave" or "intrepid".

In the Middle Ages the formation of surnames from these personal names was frequent, especially in central and northern Italy. Various studies agree on this origin: Baldoni presents itself as a form derived from Baldus, already well established in central Italy, and linked to the wide diffusion of medieval names based on this root.

The surname is documented mainly in the central regions of Italy, with notable presence in the Marche and Umbria, although it is also recorded in other areas of the centre-north. It is likewise included within the broad group of variants of Baldi, all of them related to the same Germanic base.

There are early historical records of the group of surnames derived from Baldo, with presence as early as the 12th century in localities of northern Italy, which confirms its long diffusion.

Coat of arms

Baldoni families bearing coats of arms have been documented in central Italy. However, this does not correspond to a single blazon of the surname, but to particular lineages.

Variants of the surname

Among the main variants and related surnames are: Baldone, Baldini, Baldelli, Baldinotti, Balducci, Baldi, Baldo, Baldizzi.