Sierra is a Spanish word meaning mountain chain and saw, from Latin serra. The corresponding word in Portuguese, Catalan and Latin is serra. This name is used for various mountain ranges in Spanish-speaking and other countries (with the word serra used in Portuguese-speaking countries).

Sierra or Sierras may refer to:

• Sierra de Córdoba, in the central region of the country
• Antofagasta de la Sierra, a volcanic field
• Sierra Nevada de Lagunas Bravas, on the border of Argentina and Chile
• Sierra de la Ventana (mountains), Buenos Aires province

• Serra do Mar, in the country's southeast

• Sierra Nevada (stratovolcano), La Araucanía Region
• Sierra Nevada de Lagunas Bravas, on the border of Argentina and Chile

• Sierra Nevada de Santa Marta
• Sierra Nevada del Cocuy

• Sierra Negra (Galápagos), Galápagos Province, Ecuador

• Sierra de Juárez, Baja California
• Sierra Madre del Sur, in the country's south
• Sierra Madre Occidental, in the northwest of the country
• Sierra Madre Oriental, in the northeast of the country
• Sierra Nevada (Mexico), part of the Trans-Mexican Volcanic Belt
• Sierra San Pedro Mártir, Baja California
• Sierra Negra, Puebla, Mexico

• Sierra Madre (Philippines), on the island of Luzon

• Serra da Estrela, in the north central region of the country
• Serra de Montejunto Protected Landscape, in the west region of the country
• Serra da Vila, in the west region of the country; see Castle of Carrazeda de Ansiães
• Serra do Socorro, in the west region of the country; see Mafra, Portugal

• Sierra de Gata, in the west region of the country
• Sierra de Gredos, near the central region of the country
• Sierra de Guadarrama, in the central part of the country
• Sierra de Mijas, in the south region of the country
• Sierra Morena, in the country's south
• Sierra Nevada (Spain), in the southeast region of the country
• Sierra de la Demanda, northern Iberian Peninsula

• Sierra Ancha, central Arizona
• Sierra Blanca (New Mexico)
• Sierra Estrella, southwestern Arizona
• Sierra Madre Mountains (California), southwestern California
• Sierra Nevada (U.S.), California and Nevada

• Sierra Carapé, in the central part of the country

• Sierra Nevada de Merida

• High Sierra (disambiguation)
• Mountain range
• Serra (disambiguation)
• Sierra (disambiguation)

This disambiguation page lists articles associated with the title Sierra mountains.
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