The Villa captain put in another superb display in his side’s heartbreaking 3-2 defeat to Spurs at Villa Park, and has been outstanding for much of the season.
Chelsea’s Mason Mount and Leicester City’s James Maddison have both been handed recent caps for the Three Lions, but Grealish is yet to receive a call-up.
And Jenas was adamant his recent form should warrant a place in Gareth Southgate’s next England squad with the upcoming tournament in mind.
“He’s got to be in the England squad,” Jenas told Match of the Day 2.
“It’s got to that point where it’s actually embarrassing if he’s not in the squad.
“We’re talking about Mount, Maddison, Dele Alli, he’s the best of the bunch.
“As we speak today, he’s the best of them all.”
Former Arsenal defender Martin Keown added: “You see his maturity on the ball, the way players are bouncing off him, he’s the most fouled player in the Premier League, he’s got seven goals and six assists, he really is maturing into a top player.
“Without him in the team, Villa are half the team they are.”