Sylvia Vanden Heede is a Flemish author of children's books. She has been writing since 1985, and has since been recognized internationally by literary awards. She is also known for her work with illustrator Thé Tjong-Khing.

Sylvia Theresa Walby is a British sociologist, currently Professor of Sociology, Director of the Violence and Society Centre at the City University of London. She has an Honorary Doctorate from Queen's University Belfast for distinction in sociology. She is noted for work in the fields of the domestic violence, patriarchy, gender relations in the workplace and globalisation.

Sylvia Waugh is a British writer of children's books.

Sylvia Jean Wilkinson (born 1940) is an American author.

Sylviane Granger is a Belgian linguist and emeritus professor of the University of Louvain (UCLouvain). She is the founder of the Centre for English Corpus Linguistics (CECL) and is best known for her pioneering work in the field of Learner Corpus Research. She has mainly published in the areas of corpus linguistics, learner language, contrastive linguistics, translation studies and lexicography.

Sylviane Vayaboury (born 20 April 1960) is a French Guianese writer.

Sylvie Desrosiers is a Canadian writer living in Quebec.

Sylvie Germain is a French author.

Sylvie Weil is a French professor and writer. She is known for her novels for children and her writing about her prominent intellectual family, which includes André Weil and Simone Weil.

Symeon (Simeon) of Polotsk or Symeon Polotsky was an academically-trained Baroque poet, dramatist, churchman, and enlightener of Belarusian descent who came from the Polish–Lithuanian Commonwealth to the Tsardom of Russia.