What is the name of the national anthem?

The national anthem of the United States is "The Star-Spangled Banner." This song was written by Francis Scott Key in 1814 and reflects his experience during the bombardment of Fort McHenry by British forces during the War of 1812. The lyrics describe the sight of the American flag, or "the star-spangled banner," still flying after the fierce battle, symbolizing resilience and patriotism.

The other options listed, while significant in American culture and music, are not the national anthem. "America the Beautiful" is a patriotic song that celebrates the beauty of the country, "God Bless America" is often performed at public events and expresses hope for the nation's prosperity, and "This Land is Your Land" is a folk song that reflects on the American landscape and shared ownership of the land. None of these have the formal status of a national anthem like "The Star-Spangled Banner."