Thai Merit Making (Sat Thai) and Long boat Racing Festival (งานประเพณีสารทไทยและแข่งเรือยาวประเพณี) is annually held in October along Khlong 29 at Wat Thawiphon Rangsan, Amphoe Ongkharak. The fair showcases a variety of long boats racing, a krayasat-making contest (krayasat is a sticky paste made from rice, bean, sesame, and sugar, usually eaten during Sat Thai Festival), merit making on Sat Thai day, and local entertainment at night.
Ongkharak Ornamental Plants and Flowers Fair (งานมหกรรมไม้ดอกไม้ประดับองครักษ์) is annually held in April at Khlong 15, Tambon Bang Pla Kot, Amphoe Ongkharak. The contests of ornamental plants and flowers, mini-garden arrangement contests, and an academic exhibition regarding plants and flowers are also held.