Dalet (dāleth, also spelled Daleth or Daled) is the fourth letter of the Semitic abjads, including Phoenician dālt 𐤃, Hebrew dālet ד‎, Aramaic dālaṯ 𐡃, Syriac dālaṯ ܕ, and Arabic dāl د‎ (in abjadi order; 8th in modern order). Its sound value is the voiced alveolar plosive ([d]). It is also related to the Ancient North Arabian 𐪕‎‎, South Arabian 𐩵, and Ge'ez ደ.

The letter is based on a glyph of the Proto-Sinaitic script, probably called dalt 'door' (door in Modern Hebrew is delet), ultimately based on a hieroglyph depicting a door:

The letter is named dāl (دَالْ), and is written in several ways depending on its position in the word:

The letter represents a /d/ sound.

The Phoenician dālet gave rise to the Greek delta (Δ), Latin D, and the Cyrillic letter Д.

Hebrew spelling: דָּלֶת

The letter is dalet in the modern Israeli Hebrew pronunciation (see Tav (letter)). Dales is still used by many Ashkenazi Jews and daleth by some Jews of Middle-Eastern background, especially in the Jewish diaspora. In some academic circles, it is called daleth, following the Tiberian Hebrew pronunciation. It is also called daled. The ד‎ like the English D represents a voiced alveolar stop. Just as in English, there may be subtle varieties of the sounds that are created when it is spoken.

Dalet can receive a dagesh, being one of the six letters that can receive Dagesh Kal (see Gimel). There are minor variations to this letter's pronunciation, such as