Llano is the Spanish word for plain. It may refer to:
- Llano, California
- Llano Estacado, a region in northwest Texas and eastern New Mexico
- Llano, Texas, a small city in Llano County, Texas
- Llano County, Texas
- Llano River, a Texan river
- Gonzalo Queipo de Llano, a Spanish army-officer serving during the Spanish Civil War
- Los Llanos, a plain in north-western South America
- Llanero, a person from Los Llanos
- The Llano, a magical song from Piers Anthony's Incarnations of Immortality series
- Llano (processor), the codename for an AMD Fusion-architecture microprocessor.