The 23-year-old centre-back has featured in some of Fabio Capello's England squads but has yet to make his international debut.
This had given Wales manager Gary Speed hope of snaring Shawcross, but the Chester-born defender is keen to make an impact with England.
"I've not considered Wales. I have spoken to Gary Speed a couple of times and made my plans clear," said Shawcross.
"Obviously [Speed] wants me to play for Wales but I made my decision and I'm going to stick with it.
"Hopefully I can prove I am good enough to get into the England team. I'm not at the moment so I don't think I'm too wanted there."
Shawcross joined Stoke on a permanent basis from Manchester United in 2008.