Amphinomida is an order of marine polychaetes. The order contains two families:

• Amphinomidae Lamarck, 1818
• Euphrosinidae Williams, 1852

The fossil record of this taxon (not abundant in annelids overall because this taxon lacks a mineralized skeleton) formerly included Palaeocampa anthrax Meek & Worthen, 1865 from the Late Carboniferous site of Montceau-les-Mines. However, this genus was redescribed as an aysheaiid lobopodian in 2025.

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