Tonto dikeh officially changes name
I'm not aware of any information about Tonto Dikeh officially changing her name. Tonto Dikeh is a Nigerian actress and philanthropist who has been active in the entertainment industry for many years. She was born Onyebuchi Tonto Dikeh on June 9, 1985, and has been known by her birth name throughout her career.
It's possible that you may be thinking of a different celebrity or individual who has changed their name. If you could provide more context or clarify what you're referring to, I'd be happy to try and help you further.