The Great Bell of Dhammazedi is a bronze bell, believed to be the largest bell ever cast. It was cast on 5 February 1484 by order of King Dhammazedi of Hanthawaddy Pegu, and was given as a present to the Shwedagon Pagoda of Dagon (today's Yangon, Myanmar).

In 1484, prior to the casting of the bell, King Dhammazedi's astrologer advised him to postpone the date, because it was at the astrologically inauspicious time of the Crocodile constellation, and the resulting bell would not produce any sound. After the bell was completed, it reportedly gave an unpleasant sound.

According to texts of the time, the bell was cast of 180,000 viss (294 t) of metal which included silver and gold, as well as copper and tin. The bell was said to be twelve cubits high and eight cubits wide.

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