Esca

Esca can refer to: Eurovision Song Contest Asia, an annual international song competition Esca (fish anatomy) or illicium, a modified luminescent fin ray found in anglerfish and frogfish Esca (grape disease) the Ezka, a river in the Basque country known as "Esca" in Spanish ESCA or Electron Spectroscopy for Chemical Analysis, now known as X-ray photoelectron spectroscopy (XPS)