The Thomas D. Clareson Award for Distinguished Service is presented by the Science Fiction Research Association for outstanding service activities. Particularly recognized are: promotion of SF teaching and study, editing, reviewing, editorial writing, publishing, organizing meetings, mentoring, and leadership in SF/fantasy organizations.

Previous winners include:

• 1996 - Frederik Pohl
• 1997 - James Gunn
• 1998 - Elizabeth Anne Hull
• 1999 - David G. Hartwell
• 2000 - Arthur O. Lewis
• 2001 - Donald "Mack" Hassler
• 2002 - Joan Gordon
• 2003 - Joe Sanders
• 2004 - Patricia Warrick
• 2005 - Muriel Becker
• 2006 - Paul Kincaid
• 2007 - Michael Levy
• 2008 - Andrew Sawyer