Rojas is a Spanish-language surname.

Rojas may also refer to:

• Rojas, Buenos Aires, town located in the north-east of the Buenos Aires Province, Argentina
• Rojas, Province of Burgos, municipality and town located in Castile and León, Spain.
• Rojas Cove, 1 km wide cove indenting the coast of Greenwich Island in the South Shetland Islands, Antarctica
• Rojas de Cuauhtémoc, town and municipality in Oaxaca in south-western Mexico
• Rojas Magallanes metro station, elevated metro station in Santiago, Chile
• Rojas Municipality, one of the 12 municipios in the Venezuelan state of Barinas
• Rojas novads, municipality in Courland, Latvia
• Rojas Partido, partido located in the north of Buenos Aires Province in Argentina
• Rojas Peak, in the center of Lemaire Island, Danco Coast, Graham Land, Antarctica
• Cristóbal Rojas Municipality, Miranda, municipios in the Venezuelan state of Miranda
• Ernesto Rojas Commandos, small guerrilla group in Colombia
• Estadio General Pablo Rojas, football stadium in Barrio Obrero in Asunción, Paraguay
• Teniente Cesar Lopez Rojas District, one of six districts of the province Alto Amazonas in Peru

• Petroleum industry in Western Australia
• Petroleum in Ghana
• Petroleum in Nigeria
• Petroleum in Southeast Asia
• Petroleum Integrity Office
• Petroleum in the United States
• Petroleum in Western Australia
• Petroleum Law of 1955
• Petroleum naphtha
• Petroleum naptha
• Petroleum Nationalization in Mexico
• Petroleum News Alaska
• Petroleum nut
• Petroleum phase out
• Petroleum play
• Petroleum Pricing in Nova Scotia
• Petroleum Pricing in Prince Edward Island
• Petroleum processes
• Petroleum production engineering
• Petroleum production in Southeast Asia
• Petroleum Product Pricing Regulatory Agency
• Petroleum rapid transit
• Petroleum refination
• Petroleum Refineries
• Petroleum refining processes