Lingling-o

thumb|Three designs of metal lingling-o from the Philippines, now housed at the Musée du quai Branly in [[Paris, France]] thumb|Jade lingling-o from Vietnam thumb|Jade lingling-o from Vietnam with the double-headed animal motif Lingling-o or ling-ling-o are a type of penannular or double-headed pendant or amulet that have been associated with various Late Neolithic to late Iron Age Austronesian cultures. Most lingling-o were made in jade workshops in the Philippines, and to a lesser extent in the Sa Huỳnh culture of Vietnam, although the raw jade was mostly sourced from Taiwan.

The earliest surviving examples of lingling-o, dating back to around 500 BC, were made out of nephrite jade, but many later examples were also made of shell, gold, copper, and wood; the different materials suggest differences in the wearer's social standing. The term lingling-o was first popularized by H. Otley Beyer, who adapted it from the Southern Ifugao name for such ornaments; it has since also come to be used as a blanket term for various metal age Austronesian ornaments found in the Philippines, Taiwan, and Vietnam.