Kashmiriyat (also spelled as Kashmiriat) is the centuries-old indigenous tradition of communal harmony and religious syncretism in the Kashmir Valley in the Indian-administered union territory of Jammu and Kashmir. Emerging around the 16th century, it is characterised by religious and cultural harmony, patriotism and pride for their mountainous homeland of Kashmir.

Kashmiriyat exemplifies the joint Hindu-Muslim culture, festivals, language, cuisine and clothing in the Kashmir Valley. In the spirit of Kashmiriyat, festivals of Hinduism and Islam are celebrated by adherents of both faiths. Kashmiriyat, with the Hindu-Muslim unity it encourages, was promoted by Kashmiri sultan Zain-ul-Abidin; the story of the Kashmiri mystic Lal Ded (also called Lalleswari), in which her body turned into a mound of flowers that was buried by both Hindus and Muslims, serves as an emblem of Kashmiriyat that keeps it alive today.

In recent 2007 poll conducted by the Centre for the Study of Developing Societies in New Delhi, 84 percent of people in Srinagar want to see the return of Kashmiri Pandits. A 2001 MORI survey of popular opinion in the then-state of Jammu and Kashmir, including the Kashmir Valley, found 92% respondents opposed to the state being divided on the basis of religion or ethnicity. However, scholar Christopher Snedden states that the concept of Kashmiriyat has been 'romanticised' and Kashmiriyat could not prevent antipathy and rivalry between the Kashmiri Pandits and the Kashmiri Muslims.