Fulham have extended the contracts of Denis Odoi, Stefan Johansen, Floyd Ayite and Neeskens Kebano by a further year.
The news comes the week after Scott Parker was appointed as Fulham's permanent head coach, after spending nearly three months as caretaker manager.
Fulham's relegation from the Premier League was confirmed last month, and Parker will now face a busy summer reshaping his squad as they bid to bounce back from the Sky Bet Championship at the first attempt.
Versatile defender Odoi was a regular under previous head coaches Slavisa Jokanovic and Claudio Ranieiri, but featured intermittently under Parker.
Wingers Ayite and Kebano were used infrequently by Fulham this season, although Ayite did feature more often following Parker's appointment.
Midfielder Johansen spent the second half of last season on loan at West Brom, helping them to the Championship play-offs.
The Baggies are currently 2-1 down to Aston Villa after the first leg of their semi-final, with the second match taking place on Tuesday, live on Sky Sports.