Glen T. Martin is an American philosopher, writer, pacifist and social reformer. He is also a researcher, teacher and holds administrative positions in many institutions in USA and abroad. Since 2012, he has served as President of the World Constitution and Parliament Association (WCPA).

Glenda T. Lappan is a professor emerita of mathematics at Michigan State University. She is known for her work in mathematics education and in particular for developing the widely used Connected Mathematics curriculum for middle school mathematics in the US.

Glenda Larke, born Glenyce Larke, is an Australian writer.

Glenda Millard is an Australian writer of children's literature and young adult fiction.

Glendon Fred Swarthout was an American writer and novelist.

Glenn Cooper is an American author and physician best known for being an internationally best selling thriller writer. His books have been translated into 31 languages and, as of 2014, have sold over six million copies. He lives in Gilford, New Hampshire and he is Solofra honorary citizen.

Glenn Edward Greenwald is an American journalist, author, and former constitutional law attorney.

Glenn Herdling is an American author, comics writer, and editor who has written numerous comic books, including Marvel Comics' Namor the Sub-Mariner series. He is also the author of the Piper Houdini series of young adult novels and a manualist.

Glenn Meade is an Irish author. He was born in Finglas, Dublin in 1958. He has written fiction and plays.

Glenn Patterson FRSL is a writer from Belfast, Northern Ireland, best known as a novelist. In 2023, he was elected a Fellow of the Royal Society of Literature.