To say "What is your name?" in Spanish, you can say: ¿Cómo te llamas? This is the most common and informal way to ask someone's name. If you want to be more formal, you can say: ¿Cómo se llama usted? Both phrases mean "What is your name?" but the first is used with friends, peers, or people your age, and the second is used in formal situations or when addressing someone older or in a position of respect.