Perdicinae is a subfamily of pheasants, regrouping the partridges, Old World quails, and francolins. Although this subfamily was considered monophyletic and separated from the pheasants, junglefowls, and peafowls (Phasianinae) till the early 1990', molecular phylogenies have shown that this two subfamilies actually constitute only one lineage. For example, some partridges (Perdix genus) are more closely affiliated to pheasants, whereas Old World quails and partridges from the Alectoris genus are closer to junglefowls.

Perdicinae is a non-migratory Old World group. These are medium-sized birds, and are native to Europe, Asia, Africa, and the Middle East. They are ground-nesting seed-eaters. The subfamily includes the partridges, the snowcocks, the francolins, the spurfowl and the Old World quail.