The Fifth Kerala Legislative Assembly Council of Ministers in K. Karunakaran's first ministry, was a Kerala Council of Ministers (Kerala Cabinet), the executive wing of Kerala state government, led by Indian National Congress leader K. Karunakaran from 25 March 1977 to 25 April 1977. It comprised 15 ministers, all belonging to the United Front.
K. Karunakaran took charge as the Chief Minister of Kerala on 25 March 1977 following a stupendous win in the assembly elections, in which the United Front, led by the Indian National Congress won a record 111 seats. However, he was compelled to demit his office, exactly one month later on 25 April 1977, following certain references by the Kerala High Court in the Rajan case. during his tenure as the Home Minister under his predecessor, C. Achutha Menon.
Subsequently, A. K. Antony was sworn in as the new Chief Minister.