Bowden returns home to New Zealand
Bowden, who joined the Premiership club from Super Rugby team the Blues in January 2016, will return to his native New Zealand – before deciding the next step in his career.
"We'd like to thank Dan for the commitment he has shown during his time at the club," Director of Rugby Todd Blackadder said.
"He's a great professional and we'd like to wish him all the best for the future."
* Meanwhile Jack Wilson has extended his stay with Bath until at least 2019.
The 27-year-old wing joined Bath in October, making the move from New Zealand provincial side Otago, and has made eight appearances so far, scoring three tries in the process.
Strong in defence and a real threat with ball in hand, Wilson has shown his attacking flair off the wing with a memorable try against Newcastle Falcons earlier this month, where he fended off three tacklers on his way to a 40-metre run in.
"I have really enjoyed my time with Bath so far and I am looking forward to my next two years here," Wilson said.
"There is a great squad here at Bath, many of whom have committed to the Club long-term, and that's fantastic to be part of going forward.
"We're an ambitious Club, and I'm excited to be playing a part in that over the coming seasons."
Director of Rugby, Todd Blackadder, added: "It's great news to have Jack on board for next season. He's been a real positive influence on the squad and I know he has a lot more to offer in the last few months of the season and looking ahead to the future.
"His experience in the Southern Hemisphere and in Sevens brings that different dimension to the squad, which will be invaluable during his time with Bath."
