CTK may refer to:

• C. T. K. Chari (1909–1993), Head of the Department of Philosophy at Madras Christian College from 1958 to 1969
• City Thameslink railway station (station code: CTK), a central London railway station within the City of London
• Crash Test Kitchen, a video cooking podcast and video blog
• CTK – CiTylinK, an airline based in Accra, Ghana
• Czech News Agency, (also ČTK), a national public service news agency in the Czech Republic

This disambiguation page lists articles associated with the title CTK.
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