1917–18 NHL transactions

This is a list of players recruited into teams in the National Hockey League in its first season, the 1917–18 NHL season. Some had been free agents and others were moved as part of two dispersal drafts.

Rights retained
Note: This is the list of players who were retained by their teams after the NHA disbanded and the NHL was created.

Dispersal draft
Note: This is the list of players who were selected in the dispersal drafts when the Quebec Bulldogs opted not to play the season and the Montreal Wanderers left the league after their home arena burned down.