The 13^th International Magnetic Measurement Workshop will be held at the Stanford Linear Accelerator Center from Monday, May 19 through Thursday, May 22, 2003.  All professionals in the field of magnetic measurements are encouraged to attend. The workshop is primarily concerned with equipment and techniques for measuring and fiducializing accelerator magnets and insertion devices, although other relevant topics are also welcome.  The program consists of presentations by the workshop participants followed by discussions.  During the workshop, there will be an industrial exhibit and a tour of the SLAC magnetic measurement facilities. A CD containing the presentations will be sent to each participant.