Did Spain lose New Orleans to the French during the French and Indian War?

No, Spain did not lose New Orleans to the French during the French and Indian War. In fact, Spain gained control of New Orleans and the surrounding territory as a result of the Treaty of Paris in 1763, which ended the war. The treaty ceded Louisiana to Spain in compensation for Spain's loss of Florida to Britain. Thus, New Orleans remained under Spanish control until it was later transferred back to France in 1800.