- August 15, 1957
The Syracuse Nationals sold George King to the Cincinnati Royals.
- September 12, 1957
The Minneapolis Lakers traded Walter Dukes to the Detroit Pistons for Larry Foust.
- October 10, 1957
The Philadelphia Warriors sold Larry Costello to the Syracuse Nationals.
- November 7, 1957
The Cincinnati Royals signed Monk Meineke as a free agent.
- December 10, 1957
The Cincinnati Royals sold Tom Marshall to the Detroit Pistons.
The New York Knicks sold Phil Jordon to the Detroit Pistons.
- December 18, 1957
Charles Eckman resigns as Head Coach for Fort Wayne Pistons.
- December 19, 1957
The Detroit Pistons hired Red Rocha as Head Coach.
- December 28, 1957
The Syracuse Nationals sold Joe Holup to the Detroit Pistons.
- January 14, 1958
The Minneapolis Lakers fired George Mikan as Head Coach.
The Minneapolis Lakers hired John Kundla as Head Coach.
- January 19, 1958
The Philadelphia Warriors traded Walt Davis to the St. Louis Hawks for Dave Plunkett.
- February 5, 1958
The Minneapolis Lakers traded Art Spoelstra to the New York Knicks for Bo Erias and cash.
- February 16, 1958
The St. Louis Hawks traded Frank Selvy to the Minneapolis Lakers for Dick Boushka and Terry Rand.
- February 18, 1958
The Detroit Pistons waived Tom Marshall.
- February 20, 1958
The Cincinnati Royals claimed Tom Marshall on waivers from the Detroit Pistons.
- April 5, 1958
Vince Boryla resigns as Head Coach for New York Knicks.
- April 8, 1958
The New York Knicks hired Andrew Levane as Head Coach.
- April 10, 1958
John Kundla resigns as Head Coach for Minneapolis Lakers.
- April 30, 1958
Alex Hannum resigns as Head Coach for St. Louis Hawks.
- May 24, 1958
The St. Louis Hawks hired Andy Phillip as Head Coach.
- June 10, 1958
The Syracuse Nationals traded Dick Farley and Earl Lloyd to the Detroit Pistons for cash.