In standard English, the Sunday after next Sunday is usually called the Sunday after next or the following Sunday. In some British usage, Sunday week can mean the Sunday a week after next Sunday, which is the same idea.

Simple way to say it

  • Next Sunday = the nearest upcoming Sunday.
  • The Sunday after next = the Sunday one week later.
  • The following Sunday = also commonly used for that second Sunday.

If you want to avoid confusion

A very clear phrase is:

“two Sundays from now”

That removes ambiguity, especially because “next Sunday” can be interpreted differently by different speakers.

If you want, I can also explain the difference between next Sunday , this Sunday , and Sunday week in a tiny table.