The Persian alphabet ( Persian: الفبای فارسی, romanized : Alefbā-ye Fārsi) is a writing system used for the Persian language spoken in Iran ( Western Persian) and Afghanistan ( Dari Persian) since the 7th century after Muslim conquest of Persia.

The Persian language spoken in Tajikistan ( Tajiki Persian) is written in the Tajik alphabet, a modified version of the Cyrillic alphabet since the Soviet era. The Persian script is directly derived and developed from the Arabic script.

Since the script is cursive, the appearance of a letter changes depending on its position: isolated, initial (joined on the left), medial (joined on both sides) and final (joined on the right) of a word. The names of the letter are mostly the ones used in Arabic except for the Persian pronunciation.

The Persian script is directly derived and developed from the Arabic script. After the Muslim conquest of Persia and the fall of the Sasanian Empire in the 7th century, Arabic became the language of government and especially religion in Persia for two centuries.