Kerrea Gilbert, Flavien Belson, Abdulai Bell-Baggie and Alan O'Brien will all leave Yeovil after their contacts expired.
The Glovers have decided against renewing their deals at Huish Park, the club has revealed.
The quartet have all struggled to make an impact on the first-team squad in Somerset.
Winger O'Brien featured most prominently of the four during his six-month stay at Yeovil, making 15 appearances, while defender Gilbert turned out nine times under manager Terry Skiverton.
Belson made just one disastrous appearance for the Glovers after he was sent off on debut in the 3-0 home defeat to Carlisle in October last year, while ex-Reading trainee Bell-Baggie failed to break into the first team.