阿黑麻汗（鞑靼语：احمد خان بن کوچک Ahmed Khan bin Küchük；?－1481年），金帐汗国末代可汗。

当时金帐已分裂为克里米亚汗国、喀山汗国、阿斯特拉罕汗国，大帐只剩下一小部分。他于1465年反他兄弟马赫默德。当时莫斯科公国愈来愈强。1474年大帐派使者卡拉库楚姆命伊凡三世交税，1476年派使者叫他到汗廷，他也拒绝。

另一方面，阿黑汗在1472年已经与波兰卡西米尔四世来住。1480年，他向莫斯科进军。10月撤退，其后他于西伯利亚秋明一带被昔班家族伊巴克汗杀害，领土也被诺盖人占有。

Ahmed bin Küchük (Urdu; Persian; Arabic:احمد خان بن کوچک) was a Khan of the Great Horde between 1465 and 1481. In 1465, Ahmed Khan seized power in the Horde by rising against his brother Mahmud bin Küchük, who had been its ruler since 1459. In 1472, Ahmed Khan entered into alliance with the Polish king Casimir IV against Ivan III. In 1476, Ahmed Khan suggested to Ivan III that he should recognize him as his overlord. However the situation of forces was not in the Horde's favour. In 1480, Ahmed Khan organized another military campaign against Muscovy, which would result in the Horde's retreat (Great standing on the Ugra river) 150 miles from Moscow. They stood off shouting at one another on opposite banks for weeks before a conflict became inevitable. Panic set in, as both sides suddenly turned deciding to flee, rather than fight in the tradition of Genghiz Khan. At the last the conflict between Eurasians was over. The Mongols last possessions were in Kazan, Astrakhan, and the Crimea. Ivan III, Russia's ruler finally freed himself from the Tatar-Mongol dependency.