Joseph Chusak Sirisut

Joseph Chusak Sirisut (, born February 24, 1956) is a Thai Roman Catholic prelate currently serving as the bishop of the Diocese of Nakhon Ratchasima in northeastern Thailand.

Life Born at Bang Nok Kwaek, the center of the Diocese of Ratchaburi, he studied at the Sampran Major Seminary to become a priest. He received a B.A. in scholastic administration at the Sukhothai Thammathirat Open University and a Masters in Theology in the United States; he was ordained as priest on May 11, 1984.

After ordination he was first headmaster of the Daruna school, and in 1986 he became administrator and director of the Ratchaburi Institute.

Coat of arms The bishopric coat of arms is subdivided into four fields. The star in the upper right quarter symbolizes mother Mary. To the upper left is the holy Bible and a housel below. The pigeon in the lower right holds an olive branch in her beak, the common peace symbol. In the lower left is a Fleur-de-lis, which is the symbol of Saint Joseph, the patron saint of the bishop. His motto written below the shield is "Ad Gloriam Dei" (to the glory of God, 1 Corinthians 10:31).