John Turner, Toby Albert, Fletcha Middleton and Tom Prest have each penned fresh terms with the club having each come through the pathway system in recent years
John Turner is among four Hampshire pathway products to sign new contracts with the club.
Toby Albert, Fletcha Middleton and Tom Prest have also committed their immediate future to The Ageas Bowl side.
"They are an exciting group that have progressed through the system," the director of cricket Giles White.
"We look forward to watching them grow over the coming years and we feel they have the attributes to help take the team to the next level."
Middleton was ever-present for Hants during the Championship and One-Day Cup (Alex Davidson/Getty Images)
Turner, who is currently in the Caribbean with England's white-ball squads, enjoyed a fine breakthrough during the 2023 summer, going from making his T20 debut to a first international call-up in the space of less than three months.
"After an amazing couple years at The Ageas Bowl, it was an easy decision to extend my time at the club," the 22-year-old said. "Since making the step up to the first XI, I've really enjoyed my time on and off the pitch.
"Hampshire have played a massive role in the development of my cricket and I couldn't thank everyone at the club enough. I am extremely excited for the next few years and hopefully, I can help contribute to more success on the pitch."
Prest was a central figure as Hampshire reached the One-Day Cup final (Gareth Copley/Getty Images)
Batter Middleton was an ever-present during last season's County Championship and One-Day Cup campaigns.
Prest, 20, was part of the sides that reached Blast Finals Day and the One-Day Cup final, also featuring in five Championship matches, scoring more than 700 runs across formats.
Albert also forced his way into the red-ball side, making his Championship debut in September against Somerset and also featuring in wins against Essex and Surrey.
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