The 25-year-old winger has signed a pre-contract with the German side to join up at the end of the MLS season
The Seattle Sounders are set to lose a key member of their squad this winter.
Joevin Jones, a crucial part of the club's run to the 2016 MLS title, has signed a pre-contract with SV Darmstadt, the German side announced on Sunday.
Jones, a 25-year-old Trinidad & Tobago international, was used mostly as a left-back for the Sounders on their run to the title last year, but plays a more attacking role for his country and has also been pushed higher up the pitch for Seattle in recent matches.