Lastras may refer to:
Places Lastras de Cuéllar, a municipality located in the province of Segovia, Castile and León, Spain Lastras del Pozo, a municipality located in the province of Segovia, Castile and León, Spain
People Alfonso Lastras Ramírez (1924-1999), Mexican lawyer and politician Pablo Lastras (born 1976), Spanish cyclist
See also Lastra, a surname