Oliva (Valencian: [oˈliva], locally [oˈlivɛ]; Spanish: [oˈliβa]) is a municipality in the comarca of Safor in the Valencian Community, Spain. To its east lie 10 kilometres (6.2 miles) of coastline and beaches fronting the Mediterranean Sea, and eight kilometres to the north is Gandia.

The Passeig (promenade) runs through the centre of the town, and features a market each Friday. On the left side of the Marina beach is Kiko beach. The blue flagged beaches of Oliva stretch for 7 kilometres (4.3 miles); many contain sand dunes.

Oliva has two big and colourful Moors and Christians festivals (festes de Moros i Cristians, in Valencian language) in the area; the falles "Fiesta" in March, the Moors and Christians in July and Setmana Santa (Holy Week). In the old town there are two churches, Sant Roc and Santa Maria la Major. Sant Roc dates from the 18th–19th centuries, and Santa Maria from the 17th–18th centuries. At the top of the hill in the old town is Santa Anna Castle, built in the 16th century.

In the centre of the town is a Roman kiln situated below one of the blocks of apartments on Santíssim street.

About 80% of the economy of Oliva is based on the tertiary sector, especially in commerce, shops, banks and tourism, currently there are more than 30 banks in Oliva. The secondary sector makes up about 15% of the economy, with an extended industrial area, located outside of the city, in the south-east of Oliva. The primary sector makes up less than 5% of economy, with extended plantations of oranges and tangerines, and minor plantations of avocado, loquat, fig, banana, prickly pear, etc.

In 2011, Oliva had a population of 28,400 inhabitants, of which 7,466 (26.29%) of the population were immigrants, with the majority coming from Bolivia, Ecuador, Morocco, United Kingdom and Romania. In Oliva there are citizens of more than 50 countries, especially from South America, Europe, Africa and Asia.

In 2011 the unemployment rate in the city was 9.7%. The median income of a person in Oliva in 2011 was €22,400 ($27,637).

Oliva has a Mediterranean-Subtropical climate (Köppen climate classification: Csa), with more than 230 days above 20 °C (68 °F). The winters are mild and temperate whilst summers are hot and dry. The average annual temperature is about 19 °C (66 °F). In winter, during the cold waves, the minimum temperature can fall slightly under 6 °C (43 °F). Temperatures below the freezing mark and snow are almost unknown in Oliva. Whilst in summer the average day-time temperature ranges from 28 to 32 °C (82 to 90 °F). Temperatures may vary, however during heat waves which occur every year, the temperatures always exceed 38 °C (100.4 °F) and also can exceed 41 °C (105.8 °F). The wettest season is the autumn, while the driest season is the summer. Typically the city has more than 300 days in a year with clear skies.

As of 2021, Oliva has experienced 20 intense floods since 1972.

• Francisco Brines, poet
• David Fuster, footballer
• Enric Morera (1964), a Spanish nationalist politician

• Tourist website
• Oliva Tourist Guide website