Perayaan DongZhi atau Perayaan Solstis Musim Sejuk (Bahasa Cina: 冬至; pinyin: Dōngzhì; secara harfiahnya "Keterlaluan Musim Sejuk") adalah salah satu perayaan yang paling penting yang diraikan oleh China dan negara Asia Timur lain semasa tempoh suria Dongzhi (solstis musim sejuk), pada atau sekitar 22 Disember apabila cahaya matahari adalah yang paling lemah dan siang hari terpendek. Ia berlaku pada 22 Disember (waktu Asia Timur) pada tahun 2011.
Asal-usul perayaan ini boleh disusur kembali kepada falsafah yin dan yang keseimbangan dan keharmonian dalam kosmos.
Traditionally, the Dongzhi Festival is also a time for the family to get together. One activity that occurs during these get-togethers (especially in the southern parts of China and in Chinese communities overseas) is the making and eating of tangyuan (湯圓) or balls of glutinous rice, which symbolize reunion. Tangyuan are made of glutinous rice flour and sometimes brightly coloured. Each family member receives at least one large tangyuan in addition to several small ones. The flour balls may be plain or stuffed. They are cooked in a sweet soup or savory broth with both the ball and the soup/broth served in one bowl. It is also often served with a mildly alcoholic unfiltered rice wine containing whole grains of glutinous rice (and often also Sweet Osmanthus flowers), called jiuniang.
Old traditions also require people with the same surname or from the same clan to gather at their ancestral temples to worship on this day. There is always a grand reunion dinner following the sacrificial ceremony.
The festive food is also a reminder that celebrators are now a year older and should behave better in the coming year. Even today, many Chinese around the world, especially the elderly, still insist that one is "a year older" right after the Dongzhi celebration instead of waiting for the lunar new year.
