French sponsorship refers to the support provided by the French government to explorers and their expeditions during the Age of Exploration, particularly in the 15th to 17th centuries. This backing often included financial resources, ships, and navigational expertise, which allowed explorers to embark on significant voyages that expanded French territories and influence. French sponsorship played a vital role in establishing France's presence in the New World and contributing to European rivalries for dominance in global trade and colonization.