Diotima may refer to:
People Diotima of Mantinea, an ancient female philosopher and tutor of Socrates Pen-name of Esme Wynn-Tyson, British author. Pseudonym of Susette Borkenstein Gontard in poetry by Friedrich Hölderlin Pseudonym of Ermelinda Tuzzi, a protagonist in Robert Musil's novel The Man Without Qualities
Other 423 Diotima, an asteroid Diotima (album), a 2011 album by experimental black metal band Krallice Diotima (magazine), a Greek cultural and social magazine Diotíma (website), a website on women and gender in the ancient world Diotima (typeface), a typeface designed in 1954 by Gudrun Zapf von Hesse