狨亚科（学名 Callitrichinae），过去也被单独列为狨科(Callitrichinae)，属于灵长目卷尾猴科，为新世界猴。

狨亚科分为四属：

The Callitrichidae (also called Arctopitheci or Hapalidae) are a family of New World monkeys, including marmosets and tamarins. At times, this group of animals has been regarded as a subfamily, called Callitrichinae, of the family Cebidae.

This taxon was traditionally thought to be a primitive lineage, from which all the larger-bodied platyrrhines evolved. However, some works argue that callitrichids are actually a dwarfed lineage.