What Egyptian name did Pharaoh give Joseph?

Answer: Zaphenath-paneah

Pharaoh named Joseph Zaphenath-paneah (KJV: Zaphnath-paaneah) and gave him Asenath, daughter of Potiphera priest of On, as his wife.

“Pharaoh gave Joseph the name Zaphenath-paneah, and he gave him Asenath daughter of Potiphera, priest of On, to be his wife. And Joseph took charge of all the land of Egypt.”— Genesis 41:45 (BSB)