Jaja (, also Romanized as JÃÂjàand JàJÃÂ; also known as Chah JÃÂ, ChÃÂhjah, ChÃÂhjeh, ChÃÂjeh, and ShÃÂhjà «n) is a village in Rezvaniyeh Rural District, in the Central District of Tiran and Karvan County, Isfahan Province, Iran. At the 2006 census, its population was 289 in 88 families.