Ena City (Ena-shi) is a city in the Tōnō region of Gifu Prefecture, Japan. As of April 2015, the city has an estimated population of 52,606. The total area is 504.19 km².
The city was originally founded on April 1, 1954, but it merged with four towns and a village from the former Ena District to form the new city of Ena on October 25, 2004. The other municipalities participating in this merger were: Akechi, Iwamura, Kamiyahagi, Kushihara, and Yamaoka.