Di may refer to:

• The diminutive form of the name Diana, Diane and Dianne. Dai is the Welsh diminutive form of the name David.
• Diana, Princess of Wales.
• Di (ethnic group) (?), an ancient ethnic group in China.
• di-, a Greek numerical prefix meaning "twice", "double" or "two".
• Di, a Latin word for "gods" and the plural of the word deus—variant plurals include dei and dii. The feminine form is deae ("goddesses"). This word may refer to a number of beings in Roman religion, including:

• Dii Consentes, the twelve major deities, Romanized from the Greek Twelve Olympians: Jupiter, Juno, Neptune, Minerva, Mars, Venus, Apollo, Diana, Vulcan, Vesta, Mercury and Ceres.

• Di Conserentes, deities who presided over procreation.

• Di Conservatores, gods believed to have saved or preserved the worshiper during a difficult time.

• Di indigetes, ancient indigenous gods of the Romans who predated the later ones adopted from other mythologies.

• Di Inferi, underworld gods, honored every five years in the Ludi Taurei.

• Di Manes, the collective spirits of the dead.

• Di Nixi, goddesses of childbirth.

• Di Parentes, ancestor spirits worshiped during the Parentalia.

• Di Penates, household gods.

• Di, one of the 8 departments of the Sourou Province of Burkina Faso.
• Dizi, a Chinese musical instrument.
• Shangdi, a Chinese deity.
• Di, Italian for of or from.
• Judge Di or Dee, a partially fictitious Chinese magistrate and detective.

See also

• DI, a two-letter acronym.
• Die

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