List of 1955–56 NBA season transactions

This is a list of all personnel changes for the 1955 NBA off-season and 1955–56 NBA season.

September 30, 1955

 * The Fort Wayne Pistons traded Monk Meineke to the Rochester Royals for Odie Spears.

October 25, 1955

 * The Rochester Royals signed Connie Simmons as a free agent.

October 26, 1955

 * The Rochester Royals sold Arnie Risen to the Boston Celtics.

November 28, 1955

 * The Minneapolis Lakers sold Jim Holstein to the Fort Wayne Pistons.

December 3, 1955

 * The Philadelphia Warriors sold Bob Schafer to the St. Louis Hawks.

December 16, 1955
The Fort Wayne Pistons sold Johnny Horan to the Minneapolis Lakers.

?

 * The Fort Wayne Pistons signed Alex Hannum as a free agent.

January ?, 1956

 * The St. Louis Hawks released Chuck Cooper.
 * The Fort Wayne Pistons signed Chuck Cooper as a free agent.

January 27, 1956

 * Joe Lapchick resigns as head coach for New York Knicks.

February 9, 1956

 * The New York Knicks hired Vince Boryla as head coach.

April 30, 1956

 * The Boston Celtics traded Cliff Hagan and Ed Macauley to the St. Louis Hawks for Bill Russell.
 * The New York Knicks traded Gene Shue to the Fort Wayne Pistons for Ron Sobie.