Malting barley is an important crop in the world due to its high nutritional value that imparts great benefits to health. The aim of this study was to evaluate the proximate analysis and energy value of five varieties of barley malting of Mexican origin. Results showed that malting barley varieties have on average high amounts of total carbohydrates (76.84%), protein (12.47%), fiber (5.65%), fat (2.67%), ash (2.36%), and moisture (10.34%) and provide lots of energy to humans. Although the five varieties have the same nutrients, each variety stands out for its particular characteristics. The Esperanza variety had a higher value of carbohydrates, considering it important for nutrition and the malting industry. The Esmeralda variety showed high protein content; this parameter is significant for the feed industry and human nutrition. Armida is the variety with the highest fat content and at the same time provides greater amount of energy. The varieties with higher fiber content and ash were Adabella and Alina, respectively.