A lot is an old unit of weight used in many European countries since the Middle Ages until the beginning of the 20th century. Most often it was defined as either or of a pound (or more precisely of whatever mass value one local pound had at the time). Recorded values range from 10 to 50 grams.

Lut ibn Haran , known as Lot in the Old Testament, is a prophet of God in the Quran. He also appears in the Bible, but the biblical stories of Lot are not entirely accepted within Islam. According to Islamic tradition, Lot lived in Ur and was the son of Haran and nephew of Abraham. He migrated with Abraham to Canaan. He was bestowed as a prophet to the cities of Sodom and Gomorrah. His story is used to demonstrate Islam's disapproval of rape and homosexuality. He was commanded by God to go to the land of Sodom and Gomorrah to preach to his people on monotheism and to stop them from their lustful and violent acts. According to both the Quran and the Hebrew Bible, Lot's messages were ignored by the inhabitants and Sodom and Gomorrah were subsequently destroyed. They cannot be exactly located, but it may be supposed that they were somewhere in the plain east of the Dead Sea.

Lut may refer to:

• Lut, a prophet mentioned in the Qur'an
• Lut, Iran, a village in Mazandaran Province, Iran
• Lut, Sari, a village in Mazandaran Province, Iran
• Dasht-e Lut, a desert in southeastern Iran