Etrog or Esrog is the Hebrew word for the citron fruit or Citrus medica.
- For the Jewish religious rite utilizing the fruit, see Etrog
- For the particular variety of citron bearing this name, see Variety etrog
- Etrog may refer also to the rest of citron varieties which are also employed in the ritual. Some of them are, the Ashkenazic Diamante citron, the Yemenite citron and the Balady citron.