TTK

TTK may refer to:
 * Kosrae International Airport, FAA LID
 * the Third Ring Road (Moscow), abbreviated ТТК in Russian
 * Tiruvellore Thattai Krishnamachariar (1899–1974), an Indian politician
 * TTK Group, Indian corporate group founded by him
 * TTK, the original name under which TCL Technology was founded
 * Totsuka Station, JR East station code
 * Turkish Historical Association
 * Turkish Hard Coal Enterprises
 * TTK (gene)

ttk may refer to:
 * Totoro language, ISO 639-3 code