The Water Naga, also known as the Naga, is an enemy in the original Final Fantasy. They are rare enemies found in the Sunken Shrine (3F) and Chaos Shrine (B3), having a 1.6% chance of being encountered. They are moderately dangerous in groups, but are easy to deal with otherwise.
Naga (Sanskrit: नाग, Nāgá) is a deity of entity taking the form of a great snake—specifically the King Cobra—in Hinduism and Buddhism. For female counterparts, they're called nagi.