Aisultan Rakhatuly Nazarbayev (Kazakh: Айсұлтан Рахатұлы Назарбаев, Aisūltan Rahatūly Nazarbaev; 26 August 1990 – 16 August 2020) was a Kazakh football player, businessman, grandson of the former President of Kazakhstan Nursultan Nazarbayev and a son of the Kazakh politician Dariga Nazarbayeva.

In August 2013, Aisultan was married to Alima Nazarbayeva. He had a daughter named Ameli (born 2016) and son named Sultan.^[9]

On 23 January 2020, Aisultan made a public statement on his Facebook page, claiming that his grandfather Nazarbayev was allegedly his father and that his life was threatened.^[10] He also stated that from 8 July 2019, he had not been able to use any of his social media accounts, because he was kept in custody and that the accounts were under control by his mother Dariga Nazarbayeva and the ex-chairman of the NSC Alnur Mussayev.^[11] In response to those claims, Mussayev on his Facebook page published a document from 2013 that showed the DNA of Aisultan and his father Rakhat Aliyev coinciding to within 99.999784244% accuracy. However, the record itself was not certified by any seal or signature.^[12]

Moreover, later right after the death of Aisultan, Mussayev in his interview to «Exclusive Kazakhstan» admitted that he had published a fake DNA test results and that Aliyev is indeed not his biological father, however not specifying exactly who the father is.^[13][14]

On 13 February 2020, Aisultan requested political asylum in the United Kingdom.^[15] He explained this decision due to pressure by his family, since he had information "about high-scale corruption between the government of Russia and Kazakhstan".^[16] Minister of Information and Social Development Dauren Abaev reported Khabar Agency that "to speculate on the fantasies of an addict just because he is the grandson of the First President, it’s not fair. It’s unfair and beyond morality. It is time to close this topic."^[17] He stated that he did not inherit his father's wealth because his father's wealth was stolen by his mother Dariga Nazarbayeva and Alnur Mussayev also spelled Alnur Musaev (Russian: Альнур Мусаев) and that he was afraid that both of them wanted him killed.^[18][19]

On 16 August 2020, it was reported that Aisultan had died presumably due to cardiac arrest in London, just ten days shy of his 30th birthday.^[20] The inquest into his death found that he died from natural causes as a result of his cocaine use. ^[21]

His mother, Nazarbayeva, stated "My family is devastated at the loss of our beloved Aisultan and we ask for privacy at this very difficult time."^[22] His body was returned to Kazakhstan and was buried at Kensai Cemetery in Almaty.^[23]