Mels Hamzauly Eleusizov (Kazakh: Мэлс Хамзаұлы Елеусізов, Mels Hamzaūly Eleusızov; born 20 March 1950) is a Kazakh political activist and ecologist who is the Chairman of Tabigat Ecological Union.

From 1968 to 1970, he served in the Soviet Army as a reserve captain before becoming a flight attendant, and Secretary of the Komsomol Committee of the Alma-Ata United Air Squadron.

From 1975, Eleusizov worked in ARO-2, Jetysu shoe association, signaling and communication distance of the Alma-Ata railway while being the Head of the operational Komsomol Detachment of the Oktyabrsky District.

[1] In December 1989, Eleusizov became the Chairman of the Tabigat Ecological Union of Associations and Enterprises of Kazakhstan.

Since 1993, he has repeatedly spoken about plans to transform his eco-union into a political party, but so far his attempts have been unsuccessful.