How do you say What is your name in welsh?

There are two ways to say "What is your name?" in Welsh, depending on the formality of the situation:

Formal: Beth yw eich enw? (Beth oo ech enoo?)

Informal: Beth yw dy enw? (Beth oo dee enoo?)

The difference lies in the use of "eich" (your) and "dy" (your). "Eich" is the formal "your", while "dy" is the informal "your".