The Arsenal boss has been discussing the 22-year-old.
And the Frenchman admits the young forward can improve heavily as a player - if he believes in himself more.
Indeed, the Arsenal boss feels the Ox is too critical of himself and must believe more in his talent.
The Gunners face Tottenham Hotspur in the Capital One Cup on Wednesday night and Wenger may call upon a number of alternative players if he is to select a weakened team against his north London rivals.
Wenger is quoted as telling reporters: "It is a massive season for Alex. He is at the age now where he is getting picked regularly for the national team. He is picked by me as well for the Arsenal team.
"Alex Oxlade-Chamberlain must believe more in himself. He must believe more in his talent and that will help him develop as a player.
"Sometimes he is too critical of himself. I would like him to play with the freedom and express the desire of his talent."
|2015/16||Dribbles||Chances Created||Final-Third Passes||Minutes Played|
As Opta stats show, Oxlade-Chamberlain has won more dribbles than any Arsenal player so far this Premier League campaign, despite only playing 226 minutes.
He has only created four chances, though, and completed 47 final-third passes, but his rate of dribbles is still impressive considering how little play time he's had.
It perhaps proves he is showing freedom and creativity - but the Arsenal boss's suggestion that he could show more still stands. Imagine how high the 22-year-old's number would be then?