Clow can refer to four articles:
- Clow Reed, a character in Cardcaptor Sakura, Tsubasa: Reservoir Chronicle and xxxHolic.
- Clow Country, one of the countries in Tsubasa: Reservoir Chronicle and the residence of Sakura, Syaoran, Touya, Yukito, Fujitaka, Nadeshiko and Clow Reed himself.
- Clow Cards, a set of magical cards made by Clow Reed himself.
- Clow Book, a book that conceals all the Clow Cards inside, until Sakura releases them.