Hee-haw or eeyore. Answer: It depends on what language you speak: Afrikaans: hie-hô Albanian: i-a i-a Arabic (Algeria): hiihan hiihan Bengali: chuuchuu Catalan: i-haa Croatian: i-ja, i-ja Czech: iá...
It is called a Bray.
It is known as a bray
A donkey's noise is called a "bray".
hee haw