CTCP may refer to:
California Tobacco Control Program, a branch in the California Department of Public Health (CDPH) Client-to-client protocol, a type of communication between Internet Relay Chat (IRC) clients Compound TCP, a Microsoft algorithm included in Windows Vista Composite toe and composite plate, a type of safety footwear Công ty cổ phần, a limited company in Vietnamese CTCP, the Jaipur Metro station code for Chhoti Chaupar metro station, Jaipur, Rajasthan, India