Lewis Grabban is the captain of the forest.
He scored 13 goals for Forest last season, helping them return to the top flight for the first time in 23 years.
The defenders will leave the club when their contracts end.
Keinan Davis and Philip Zinckernagel returned to their parent clubs after spending time at the City Ground.
Figueiredo made 122 appearances for the club after joining the Reds.
Bong, a left-back from Africa, played seven times for the club last season, while former West Ham right-back Jenkinson spent the second half of the season on a loan at an Australian club.
The club have released several academy players.
Billy Fewster and Riley Harbottle, both 21, have been offered new contracts by Forest, as well as retaining two other young men.
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