Myonessus

{{about||the island|Myonnesus (island)|the battle|Battle of Myonessus}}

Myonessus or Myonessos ({{langx|grc|Μυόννησος}}) was a town of ancient Ionia, located near Teos and Lebedus.{{Cite Stephanus|s.v.}} It was situated on promontory of the same name. An island also called Myonessus stood offshore. The location is noted for the naval battle offshore in 190 BCE between the Romans and Antiochus the Great.

Although the site of the island is known (modern Cıfıtkalesi Islet);{{Cite DARE|41137}} the site of the ancient town is unlocated.