The 19-year-old, who received his maiden England U-21 call-up earlier this month, is eligible to play for either nation, as his father was born in the African country.
However, Oliseh wrote on Twitter on Sunday: "Jordon Ibe's Family Informed me by a Telephone call, that He was giving priority to an England call up. We wish them well."
Three Lions boss Roy Hodgson recently said of Ibe: "People play for the (England) Under-21s because they want to play for England.
"If we do call him up it won't be because we are worried about other nations."