Karaj is a city in Alborz province, Iran.
Karaj () may also refer to:
Places in Iran Karaj County, an administrative division of Alborz province Karaj, Ardabil, a village in Khalkhal County, Ardabil province also known as Kazaj Karaj-e Olya, a village in Sahneh County, Kermanshah province Karaj-e Sofla, a village in Sahneh County, Kermanshah province Karaj River
Other Anand Karaj, the Sikh marriage ceremony, meaning "Blissful Union" or "Joyful Union"