The surname Baschiera (and related forms) presents an old and difficult-to-interpret origin, probably linked to personal names of Lombard root. According to A. Bongioanni, it could derive from a given name documented as Bascherius or Basclerius in Lodi, whose etymology is uncertain. However, he does not rule out a relation with the Lombard term abiscaro or aviscaro, interpreted by some authors as "superintendent of the king's flocks" or "judicial official". This possible connection suggests an origin linked to posts or functions within the Lombard social organisation, which would explain its persistence in various regions of northern Italy.

Along the same lines, A. Bongioanni notes the relation of this root with other Italian surnames such as Biscaretti or Ravaschieri, which indicates a broader onomastic family. He also mentions dialectal particularities —such as the use of the articles ru or ra in old Genoese and in the Monferrato— that could have influenced the evolution of the surname. He also raises possible links with Piedmontese surnames such as Boscáro and Boschiero, which reinforces the idea of a common root with multiple regional developments.

For his part, E. Rossoni proposes a derivation from the medieval name Baschiera or Baschiere, documented as early as the 13th and beginning of the 14th centuries, as in the case of Baschiera della Tosa, a historical figure linked to the political conflicts of Florence. Taken together, both interpretations agree in pointing to a medieval anthroponymic origin, probably of Lombard root, with a complex evolution that gave rise to various related forms and surnames in different Italian regions.