The Fanscient was a science fiction fanzine published by Donald B. Day in Portland, Oregon , U.S.A.
The first issue of The Fanscient appeared in 1947. The first two issues were mimeographed and then the fanzine was letter pressed from then on, till the end of its run in 1951 with issue 14.
Each issue of Day's fanzine featured a particular author. Issue 1 featured A.E. van Vogt, Issue 5 focused on David H. Keller, and issue 8 on Robert Bloch, issue 10 on George O. Smith, Issue 11 on Theodore Sturgeon, issue 12 on Anthony Bloucher and issue 13-14 on L. Sprague de Camp.
Contributors of writing included Forrest J. Ackerman (Voice of the Imagi-Nation), H.. Adams, James R. Adams, Eric Atlas, Philip Barker, Lambert Becker, D. Bruce Berry, Robert Bloch, Anthony Boucher, Jim Bradley, Henry W. Cabot, Lin Carter, Thomas H. Carter, Stanton Coblentz (Different), Forrest C. Davis, Dorothy De Courcy, John De Courcy, Carl Dumbleton, Miles Eaton, E. Everett Evans, Thomas S. Gardner, John Grossman, J.M. Higbee, David H. Keller, Herman Stowell King, Bill Kroll, Henry Kuttner, Thyril L. Ladd, Rss Manning, H.T. McAdams, Walter Pannell, Kingsborough Reedley, Darrell C. Richardson, Jim Skrzynski, Ken Slater, J. Allen St. John, Norm Storer and Charles Stuart..
Contributors of covers and illustration were by Hannes Bok, Lin Carter, Forrest C. Davis, Miles Eaton, Ralph Rayburn Phillips, G. Waible.