| Île-de-Batz | |
| Native Name: | Enez-Vaz |
| Commune Status: | Commune |
| Image Flag: | Banniel Enez Vaz.svg |
| Image Coat Of Arms: | Blason ville fr Île de Batz (Finistère).svg |
| Coordinates: | 48.7453°N -4.0097°W |
| Insee: | 29082 |
| Postal Code: | 29253 |
| Arrondissement: | Morlaix |
| Canton: | Saint-Pol-de-Léon |
| Mayor: | Eric Grall[1] |
| Term: | 2021 - 2026 |
| Elevation Min M: | 0 |
| Elevation Max M: | 33 |
| Area Km2: | 3.05 |
The Île de Batz (pronounced as /fr/; Breton: Enez-Vaz) is an island off Roscoff in Brittany, France. Administratively, it is a commune in the Finistère department of Brittany in north-western France.
Île de Batz has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Île de Batz is . The average annual rainfall is with December as the wettest month. The temperatures are highest on average in August, at around, and lowest in February, at around . The highest temperature ever recorded in Île de Batz was on 18 August 1932; the coldest temperature ever recorded was on 14 February 1929 and 18 December 1927.
Inhabitants of Île-de-Batz are called in French Batziens or Îliens.
At the census of 1999 the island had a population of 575, and in 2005 it had an estimated population of 594.