Roman Catholic Diocese of Miao

The Roman Catholic Diocese of Miao () is a diocese in the Ecclesiastical province of Guwahati. It is located in Miao in India.
It was created on December 7, 2005 by splitting it from the Diocese of Dibrugarh. Its first bishop is George Palliparampil. The "Christ the Light Shrine in Miao is the cathedral of the diocese. The cathedral was built and blessed in 2011.
The diocese covers 8 districts of the state of Arunachal Pradesh - Tirap, Changlang, Lohit, Longding, Anjaw, Namsai, Dibang Valley and Lower Dibang Valley Districts. Neighboring dioceses are Itanagar and Dibrugarh to the west. To the north and northeast is China, to the south and southeast Myanmar.
The diocese covers an area of 31,445 km². As of 2005, 59,030 of the 420,000 people in the area are members of the Catholic Church. The diocese is subdivided into 31 parishes.