Authors
- Satyindra Singh
- Simon Singh
- Sukhwant Singh 1
- S.S. Singha
- C.C. Singleton
- Esther Singleton
- Frank Singleton
- Jack Singleton
- John Singleton 1
- Nerida Singleton
- William A. Singleton 2
- David Singmaster
- David Sington
- Deepak Sinha
- Indra Sinha
- P. Sinha
- S.P. Sinha 1
- Kyle S. Sinisi
- John Sinkankas
- C.A. Sinker 1
- C.A.C. Sinker
- Charles A. Sinker
- Bertram Sinkinson
- Elizabeth Sinn
- A.P. Sinnett
- R.J.M. Sinnett
- Colin Sinnott
- E.W. Sinnott
- Roger W. Sinnott
- Gerald Sinstadt
- Mircea Sintimbreanu
- Elizabeth L. Sinton
- John M. Sinton
- Neil Sinyard
- Micheal O. Siochru 1
- Sir George Arthur
- Catherine Siracusa
- Nancy G. Siraisi
- Mary Siraut
- Noel Sircar 1
- Guy Sircello 1
- Agnes Sire
- Marcel Sire 1
- Oswald Siren
- Torbjorn Sirevag
- Gavin Siriwardena
- June Sirk
- Gail Carolyn Sirna
- Bill Sirs
- Jacques Sirtaine
- Peter Sis
- Vladimir Sis
- Stephen Sisa
- Charles H. Sisam
- Annie Sise
- Alfred Sisley
- Geoffrey Sisley
- Adam Sisman
- Ron Sismey 1
- Knole Sissinghurst
- C.H. Sisson
- Mark Sisson
- Marshall Sisson
- Rosemary Anne Sisson
- Septimus Sisson
- Terence Sisson
- Denys S. Sissons
- J.B. Sissons
- Marshall Sissons
- Ric Sissons
- Sister Margaret
- Karin Sisti
- Ole Sitoto
- H.P. Sitters 2
- Ann Sitwell
- Edith Sitwell 1
- George Sitwell
- George R. Sitwell
- Isla Sitwell
- N.H.H. Sitwell
- Nigel Sitwell
- Osbert Sitwell 2
- Reresby Sitwell
- S.M. Sitwell
- Sacheverell Sitwell 3
- Ruth Siverns
- Bowering Sivers
- Brenda Sivers 1
- Marie Steiner-Von Sivers
- Molly Sivewright
- W.J. Sivewright
- David Sivier
- Roger Siviter 9
- Jean-Francois Six
- Herman J. Sixma
- Ian Sixsmith 2
- Albert Sixtus
- Mary Size
- Nicholas Size
- Chris Costner Sizemore