Giuseppe Alloia (active c. 1750), also known as Giuseppe Alloja, Aloia, Aloya, or Aleja, was an Italian copper plate engraver and painter, working in Naples.
He engraved Statica de'Vegetabili in Neapolitan edition of 1775, and also engraved many frescoes unearthed in Herculaneum in three volumes of folios, published in 1757,1760, and 1762.