Coutinho joined Barcelona from Liverpool in January 2017 in a deal worth £142million.
The Brazilian forward has endured frustrating season, scoring 4 La Liga goals and eight in all competitions.
However, Chelsea and Manchester United have expressed interests in signing Coutinho.
Speaking to Marca, Bartomeu said: “We expect a lot from him [Coutinho],”.
“We do not want to sell him, he’s one of the good players we want to have.”