Krishnarajanagara is an assembly constituency in the state of Karnataka, India. It is located in the Mysuru district and is part of the Mysuru-Kodagu parliamentary constituency. The constituency is named after the town of Krishnarajanagara, which is the administrative center of the constituency. The constituency is known for its scenic beauty and is home to several tourist attractions, including the KRS Dam and the Brindavan Gardens.
JD(S) won 3 times since 2008 elections.