Gregory S. Zuckerman is a special writer at The Wall Street Journal and a non-fiction author.

Greil Marcus is an American author, music journalist and cultural critic. He is notable for producing scholarly and literary essays that place rock music in a broader framework of culture and politics.

Grenville Kleiser was a North American author. He was the author of a long list of inspirational books and guides to oratorical success and personal development. Kleiser also worked as an instructor in Public Speaking at Yale Divinity School, Yale University.

Grenville Mellen was an American poet and lawyer, and the eldest son of Supreme Court Chief-Justice Prentiss Mellen.

Greta Knutson, also known as Greta Knutson-Tzara (1899–1983) was a Swedish modernist visual artist, art critic, short story writer, and poet. A student of André Lhote who adopted Abstraction, Cubism and Surrealism, she was also noted for her interest in phenomenology. Knutson was married to Romanian-born author and co-founder of Dadaism Tristan Tzara, but they later divorced.

Gretchen Craft Rubin is an American author, blogger and speaker.

Grete Weiskopf, known by the pseudonym Alex Wedding, was a German writer of children's and young adult fiction.

Gretel Ehrlich is an American travel writer, poet and essayist.

Astrid Grethe Grouleff Heltberg was a Danish writer.

Grevel Charles Garrett Lindop is an English poet, academic and literary critic.