The Communist Party of Nepal (Marxist–Leninist) is a communist political party in Nepal. It was formed by Chandra Prakash Mainali when the Communist Party of Nepal (Marxist–Leninist) reunified with Communist Party of Nepal. Mainali had refused to go along with the merger and led a faction of the former Communist Party of Nepal (Marxist–Leninist) to reorganize the party.

The Communist Party of Nepal (Unified Marxist–Leninist) (Nepali: नेपाल कम्युनिष्ट पार्टी (एकीकृत मार्क्सवादी-लेनिनवादी), romanized: nēpāla kamyuniṣṭa pārṭī (ēkīkr̥ta mārksavādī-lēninavādī); abbr. CPN (UML)) is a communist political party in Nepal. The party emerged as one of the major parties in Nepal after the end of the Panchayat era.