The Diocese of Shimoga () is a Latin Church ecclesiastical jurisdiction or diocese of the Catholic Church in India. Its episcopal see is Shimoga. The Diocese of Shimoga is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Bangalore.
On 16 July 2012, Gerald Isaac Lobo was appointed as the first bishop of the newly erected Diocese of Udupi and installed on 15 October 2012.