What is the name of the current (2020) Secretary General of the United Nations?

Timoteo, Follow the English pronunciation of someone's name. Usually we follows their name that is native in our country. People who lived in a native country can use that native name

Timoteo, And in English it would be Anthony Gutters but what’s the point of your comment when he is not Spanish , Timothy?

In Spanish it's written Antonio Gutiérrez.