Myrmecium may refer to:
- Myrmecium (spider), a genus of ant-like spiders from South America (Castianeirinae)
- Myrmecium (sponge) (Goldfuss), a genus of extinct Calcareous sponges
- Myrmēkion, an ancient Greek town at Crimea
See also
edit- Myrmecia (disambiguation)
- Myrmaecium, a genus of fungi