This is a list of player transfers involving Premiership Rugby teams before or during the 2017–18 season.
The list is of deals that are confirmed and are either from or to a rugby union team in the Premiership during the 2016–17 season.
On 24 May 2017, London Irish are promoted into the Premiership, whilst Bristol were relegated back to the Championship for the 2017–18 season.
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