Mattias Jakob Nylund (born 23 September 1980) is a Swedish former footballer, who now works as head coach at Norwegian 4th division club Steinkjer.
He played in Trelleborgs FF from the start of 2008, after a transfer from Aalesunds FK.
Due to injuries he never got established at Trelleborg and left on a free transfer after the season of 2009.
In 2010, he returned to his old club GIF Sundsvall to regain fitness after having done rehab for a cruciate ligament injury.
After a few months of training he signed a contract with GIF Sundsvall lasting the rest of the 2010 season.