CFK

CFK may refer to:


 * CFK Africa
 * Chefornak Airport, Alaska, US, FAA LID code
 * Compagnie de Chemin de fer du Katanga, a former Belgian Congo railway company
 * Chemische Fabrik Kalk, a former German chemical company
 * Cristina Fernández de Kirchner, President of Argentina from 2007 to 2015 and Vice President of Argentina from 2019 to 2023
 * Carbonfaserverstärkte Kunststoffe (CFK or CFvK), which translates to carbon fiber reinforced polymer (CFRP)