Giammaria is the name of:
Giammaria Biemmi, Italian priest Giammaria Mazzucchelli (1707–1765), Italian writer, bibliographer and historian Giammaria Ortes (1713–1790), Venetian composer, economist, mathematician, Camaldolese monk, and philosopher
See also Gianmaria, given name Jean-Marie, given name Raffaele Giammaria (born 1977), Italian racing car driver