Jack Stephens is an English footballer who plays for Southampton.

Born in Plymouth, Stephens attended Torpoint Community College, and joined Plymouth Argyle in 2005 at the age of 11. He progressed to the club's youth team in 2009 after a number of impressive performances in the junior section of the Milk Cup. He was then promoted to the club's reserve team, having appeared regularly in the Youth Alliance. Stephens began training with the club's first team in September 2010 and was included in an 18-man squad for their league match against Sheffield Wednesday. He made his debut as a late substitute in a 3–2 win for Argyle. Primarily a right back, Stephens can play in a variety of positions. "Jack is a right-back but he can play in the centre as well. He's comfortable in both positions," said John James, the club's youth development officer. "I like him at right-back because he does get forward well, he's quick, he likes to take people on and he's a good header of the ball. He's a big lad – 6ft 1in I think – and he's still growing."

He joined Southampton on 5 April 2011 for a fee of £150,000 signing an initial 3-year contract. Having been transferred outside of the transfer window, he cannot play for his present club until season 2011-12.