Four Burnley players - midfielder Johann Berg Gudmundsson and defenders Kevin Long, Matt Lowton and Erik Pieters - have signed new contracts.
The Clarets have also extended 32-year-old Pieters’ contract, which now runs until the end of the 2021-22 season.
“We have to make sure good people, good players and good servants to the club remain,” said Burnley boss Sean Dyche.
Iceland international Gudmundsson, English right-back Lowton, Dutch left-back Pieters and Republic of Ireland centre-half Long have made more than 400 Burnley appearances between them and have featured in one of the most successful spells in the Clarets’ history.