Elda (Spanish: [ˈelda]; Valencian: [ˈɛlda], also [ˈɛldɛ]) is a city and municipality located in the province of Alicante, Spain.

Elda joins together with the town of Petrer to form a conurbation with over 85,000 inhabitants.

The river Vinalopó flows through the urban area of Elda.

Tourist sites include the Footwear Museum, the Archaeological Museum, the Torre del Homenaje del castillo (a tower dating from the 12th century), Castelar Square, Count of Coloma Palace, the Town Hall and the church of Santa Ana.

It also celebrates the important festival of Moros y Cristianos CD Eldense is based in the city.