Communist Marxist Party (CMP) is a political party in Kerala, India. The party was founded in 1986 when M. V. Raghavan was expelled from the CPI(M) due to a grave difference of opinion regarding the formation of alliances with the IUML. His support for forming a united front with parties such as the Indian Union Muslim League in order to take on alliances led by the INC was ultimately rejected by the CPI(M) leadership. He was subsequently expelled from the Party.

In 2011 assembly election of Kerala, CMP fielded 3 candidates but could not win any seat. CMP had links with the Party of Democratic Socialism of Saifuddin Chaudhury in West Bengal. M.V. Raghavan attended the PDS state conference in December 2003. CMP participated in the Confederation of Indian Communists and Democratic Socialists.

In March 2014, the party split into two factions:

In 2019, some CMP(A) merged with CPI(M). CMP(J) support the UDF.

Total for Kerala: Village Wards:16, Block Wards:4, District Wards:1, Municipality Wards:7 & Corporation Wards:3.