Educational magazines
- Siegelson, Kim L. 1962-
- Siegfried, Tom 1950-
- Siegmund, Stefanie
- Sienkiewicz, Bill 1958–
- Sierra, Javier 1971-
- Sies, Luther F(rank) 1927–
- Sieswerda, Paul L. 1942-
- Siewert, Jack R. 1924–
- Sigal, Clancy 1926–
- Sigaloff, Jane 1973-
- Sigerson, Davitt
- Sigler, Jamie-Lynn 1981-
- Sigler, Scott
- Signorile, Michelangelo 1960–
- Sigurdardottir, Yrsa 1963- (Yrsa Sigurðardóttir)
- Sijie, Dai 1954-
- Sikélianòs, Eleni
- Sikes, Gini 1957–
- Sikkink, Kathryn 1955–
- Sikov, Ed 1957-