Grainger is an English surname that originated as a nickname for a granary worker or a person who worked in a grain store. It is derived from the Old French word "granger," meaning granary. The name Grainger is often associated with individuals who are hardworking, dependable, and meticulous in their work ethic. People with this surname are often seen as organized and practical, with a strong attention to detail. The name Grainger has historical roots dating back to medieval times, and has since evolved into a popular surname across English-speaking countries.