CTF

CTF may refer to:

Organizations and associations

 * Cambridge Theological Federation
 * Canadian Taxpayers Federation
 * Canadian Teachers' Federation
 * Chenab Times Foundation
 * Child Trust Fund, a UK child savings scheme
 * Children's Tumor Foundation
 * Clean Technology Fund
 * Cyprus Tennis Federation
 * Chow Tai Fook, Hong Kong based conglomerate

Science and technology

 * Capture the flag (cybersecurity), an educational exercise in computer security
 * Charge trap flash
 * Chlorine trifluoride, a highly corrosive chemical
 * Collaborative Translation Framework, a platform designed by Microsoft to improve machine translation through (possibly crowdsourced) user contributions
 * Computer to film, an imaging technology used in lithographic printing
 * Contrast threshold function, in physiological imaging
 * Contrast transfer function, in general imaging
 * Controlled thermonuclear fusion
 * CTF, an undocumented Windows protocol involved with the Microsoft Text Services Framework
 * Cut-through forwarding, a methodology used in network hardware

Transport

 * Catford railway station (National Rail station code), London, England
 * Coatepeque Airport (IATA code), Guatemala

Other uses

 * Canadian Television Fund
 * Capture the flag, a traditional outdoor game often played by children
 * Colorado tick fever
 * Controlled Traffic Farming, a soil protection driving strategy
 * Correctional Training Facility at Soledad, California
 * Counter terrorism financing
 * Commander, Task force