Henry Gantt was an American mechanical engineer and management consultant in the early 20th century best known for developing the Gantt Chart, a production scheduling chart. He graduated from Johns Hopkins University and worked as an engineer before collaborating with Frederick Winslow Taylor on applying scientific management principles. Gantt later developed his own task and bonus system and the Gantt Chart, which helped visualize work schedules and became foundational for later project management tools. He received honors like the American Society of Mechanical Engineers medal for his contributions to workforce and productivity management.