Şahika Ercümen

Şahika Ercümen is a Turkish freediver and dietitian, born in Çanakkale on 16 January 1985. ¹ She holds world records in several freediving disciplines, including a 110 m dynamic apnea swim under ice in 2011 that entered the Guinness Book of World Records, and a 100 m variable-weight no-fins dive in 2021. ¹

Ercümen was born in Çanakkale on 16 January 1985. ² She was educated in her hometown before moving to Ankara for higher education, graduating from the Department of Nutrition and Dietetics at Başkent University's Faculty of Health Sciences. ¹ Her participation in underwater sports began with scuba diving and underwater rugby, and from 2001 she was a member of four national teams — underwater hockey, underwater rugby, underwater orienteering and freediving. ¹

On 11 February 2011, at Lake Weissensee in Austria, Ercümen swam 110 m under ice in dynamic apnea, a mark that entered the Guinness Book of World Records for both men and women. ¹ In Dahab, Egypt, on 10 November 2011, she set CMAS-recognised world records of 70 m in constant weight with fins and 60 m in variable weight without fins. ¹ She raised the variable-weight no-fins record to 61 m in Lake Van in 2013, 91 m at Kaş in 2014 and 100 m at Kaş on 26 October 2021, and set a variable-weight record with fins of 110 m at Kaş on 22 October 2016. ¹ In October 2025 she reached 107 m in the variable-weight no-fins category at Kaş. ¹

Ercümen is among the most decorated Turkish freedivers, holding world records across depth, pool and under-ice disciplines over a career at world level stretching from 2006 onward. ^{1 3}

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