| Michael Sadleir | 1888–1957 | 1 |
| Lena K. (Lena Kellogg) Sadler | born 1875 | 1 |
| M. F. (Michael Ferrebee) Sadler | 1819–1895 | 1 |
| William S. (William Samuel) Sadler | 1875–1969 | 1 |
| Sadlier, J., Mrs. | 1820–1903 | 1 |
| Mary J. (Mary Joanna) Safford | 1842–1916 | 72 |
| Josep Maria de Sagarra | 1894–1961 | 1 |
| Michael Sage | 1863–1931 | 1 |
| Bernardin de Saint-Pierre | 1737–1814 | 2 |
| Camille Saint-Saëns | 1835–1921 | 2 |
| Saint-Simon, Louis de Rouvroy, duc de | 1675–1755 | 18 |
| Charles Augustin Sainte-Beuve | 1804–1869 | 4 |
| Charles Sainte-Foi | 1806–1861 | 1 |
| X.-B. (Xavier-Boniface) Saintine | 1798–1865 | 1 |
| George Saintsbury | 1845–1933 | 17 |
| Saki | 1870–1916 | 7 |
| Niilo Sala | 1856–1892 | 1 |
| C. W. (Caleb Williams) Saleeby | 1878–1940 | 1 |
| Pierre Sales | 1856–1921 | 1 |
| Emilio Salgari | 1862–1911 | 1 |
| Helen M. Salisbury | 1883–1963 | 1 |
| Marja Salmela | 1875–1924 | 2 |
| Balliol Salmon | 1868–1953 | 2 |
| James Bell Salmond | 1891–1958 | 1 |
| B. F. Salonen | 1849–1881 | 1 |
| Edgar Saltus | 1855–1921 | 1 |
| Mikhail Evgrafovich Saltykov | 1826–1889 | — |
| Hugo Salus | 1866–1929 | 1 |
| Joseph Samachson | 1906–1980 | 2 |
| Gregor Samarow | 1829–1903 | 3 |
| José María Samper | 1828–1888 | 2 |
| Emma Speed Sampson | 1868–1947 | 1 |
| John Sampson | 1862–1931 | 1 |
| James Samuelson | 1829–1919 | 1 |
| Kate Sanborn | 1839–1917 | 3 |
| António Nunes Ribeiro Sanches | 1699–1783 | 1 |
| Nellie Van de Grift Sanchez | 1856–1935 | 1 |
| George Sand | 1804–1876 | 59 |
| Maurice Sand | 1823–1889 | 1 |
| Mary Frances Sandars | born 1864 | 1 |
| W. (William) Sanday | 1843–1920 | 1 |
| Carl Sandburg | 1878–1967 | — |
| Jules Sandeau | 1811–1883 | 1 |
| Hj. Sandelin | 1852–1877 | 1 |
| Charles W. (Charles Walton) Sanders | 1805–1889 | 1 |
| R. E. (Robert Edward) Sanderson | 1830–1913 | 1 |
| R. A. (Rudolf Adriaan) van Sandick | 1855–1933 | 1 |
| Albert Hart Sanford | born 1866 | 1 |
| Arthur Benton Sanford | 1851–1933 | 1 |
| Margaret Sanger | 1879–1966 | 2 |
| Bhikshu Sangharakshita | born 1925 | 1 |
| Gaetano Sangiorgio | 1843–1910 | 1 |
| Charles Sangster | 1822–1893 | 1 |
| Margaret E. (Margaret Elizabeth) Sangster | 1894–1981 | 2 |
| Margaret Elizabeth Munson Sangster | 1838–1912 | 2 |
| William Sangster | 1808–1888 | 1 |
| Guilherme Augusto Cau da Costa Santa-Rita | 1889–1918 | — |
| George Santayana | 1863–1952 | 3 |
| Eulogio Florentino Sanz | 1822–1881 | 1 |
| Edward Sapir | 1884–1939 | 1 |
| Agnes Sapper | 1852–1929 | 5 |
| Maciej Kazimierz Sarbiewski | 1595–1640 | 1 |
| Victorien Sardou | 1831–1908 | 1 |
| Tony Sarg | 1882–1942 | 2 |
| John Sargeaunt | 1857–1922 | 1 |
| Knut Sarlin | 1882–1923 | 3 |
| Siegfried Sassoon | 1886–1967 | 3 |
| Marshall Saunders | 1861–1947 | 2 |
| T. Bailey (Thomas Bailey) Saunders | 1860–1928 | 7 |
| William Saunders | 1822–1900 | 1 |
| Ernest Albert Savage | 1877–1966 | 1 |
| Eugene Francis Savage | 1883–1978 | 1 |
| Henry W. Savage | 1859–1927 | 1 |
| Mary Langdon Bradbury Savage | 1817–1872 | 1 |
| Minot J. (Minot Judson) Savage | 1841–1918 | 1 |
| Richard Savage | 1846–1903 | 3 |
| Savary, Anne-Jean-Marie-René, duc de Rovigo | 1774–1833 | 7 |
| Jean Baptiste Henri Savigny | 1793–1843 | 1 |
| Albert Savine | 1859–1927 | 9 |
| Leicester A. (Leicester Ambrose) Sawyer | 1807–1898 | 1 |