Wilshere claimed on Tuesday that foreign players such as Manchester United's Adnan Januzaj should not be allowed to play for the Three Lions.
South Africa-born Pietersen has now asked the 21-year-old to clarify his comments.
.@JackWilshere -interested to know how you define foreigner...? Would that include me, Strauss, Trott, Prior, Justin Rose, Froome, Mo Farah?— Kevin Pietersen (@KP24) October 9, 2013
Pietersen made his England debut in 2004.