Rila (, ) is a mountain range in southwestern Bulgaria and the highest mountain range of Bulgaria and the Balkans, with its highest peak being Musala at 2,925 m. The massif is also the sixth highest mountain in Europe (when each mountain is represented by its highest peak only), coming after the Caucasus, the Alps, Sierra Nevada, the Pyrenees and Mount Etna, and the highest between the Alps and the Caucasus. More than one-third of the mountain is occupied by the Rila National Park, the rest lies within the Rila Monastery Nature Park.

The Retail Industry Leaders Association (RILA) is American trade association headquartered in Arlington, Virginia. RILA promotes consumer choice and economic freedom through public policy and industry operational excellence. Executives participate in RILA for its educational forums, its public policy advocacy, and its advancement of the industry.