ÿAdl () is an Arabic word meaning "balanced" or "justice", and is also one of the names of God in Islam. It is equal to the concept of (, "sense of justice") in the BaháüàFaith.
Adil (), and Adeel () are male names derived from ûadl and are common throughout the Islamic world.
Adl, as used by early theorists of Islamic jurisprudence, referred to an aspect of an individual's character.
This aspect is best translated as probity. In a hadith, Islamic prophet Muhammad said that, the meaning of wasat ("moderation") is adl ("justice").
Adl is another word for divine justice in Islam.
The origin of the modern Persian family name Adl is from the titles of nobility given to Iranian jurists at the end of the 19th century, that were related by family ties.
Notably, these jurists included Mirza Husain Noori Tabarsi, also known as "Hossein Shah", whose title was ûAdl al-Mulk ("Justice of the Kingdom"), Sayyid Mirza Ebrahim Khalil, whose title was Rukn al-Idalah ("Pillar of Justice"), and Mirza Mostafa Khan Adl, whose title was Mansur al-Saltanah ("Victorious of the Empire").