The name "Katrina" is of Greek origin, meaning "pure." It has been widely used in various cultures and languages, often associated with qualities of clarity and innocence. The name gained significant popularity in the English-speaking world during the 20th century. One of the most notable events associated with the name is Hurricane Katrina, which struck the Gulf Coast of the United States in 2005. This devastating storm caused widespread destruction, particularly in New Orleans, and led to significant changes in disaster response and recovery policies in the U.S.