"Which place's English?" is a common question that arises when people are not sure about the English name of a place. The answer to this question depends on the context in which it is asked.
If you are looking for the English name of a specific location, such as a city or country, you can simply search for its English name online. For example, Beijing is known as "Beijing" in English, and Japan is known as "Japan" in English.
However, if you are asking about the English language itself, then the answer is much simpler: English is spoken by people all around the world, from North America to Australia, from Europe to Africa. It is the most widely spoken first language in the world, and is also the official language of many countries.
In short, the English language belongs to everyone who speaks it, regardless of their geographic location. So, if you want to communicate in English with someone from another country, don't worry about their place of origin – just speak English!