谢尔盖·康斯坦丁诺维奇·克里卡列夫（俄语：Серге́й Константинович Крикалёв）是一名前俄罗斯宇航员，他曾经6次乘坐联盟号宇宙飞船和美国航天飞机执行太空任务，是目前世界上在太空累计停留时间记录的保持者（803天9小时39分钟）。他因为在航天领域中卓越的成就先后被授予苏联英雄和俄罗斯联邦英雄的称号。2007年在他最后一次太空任务结束后退休，担任科罗廖夫能源火箭航天集团副总裁，同时担任加加林宇航员培训中心主管

Sergei Konstantinovich Krikalev (Russian:Серге́й Константинович Крикалёв, also transliterated as Sergei Krikalyov; born August 27, 1958) is a Russian cosmonaut and mechanical engineer. As a prominent rocket scientist, he is a veteran of six space flights and ranks second to Gennady Padalka for the amount of time in space: a total of 803 days, 9 hours, and 39 minutes. He retired from spaceflight in 2007 and is currently working as vice president of Space Corporation Energia.