HD2

HD2 may refer to:

• A Euro1080 High-definition television station in Europe
• An HD Radio FM sub-channel designation
• Hidden & Dangerous 2, PC game
• HD 2 (BD+56 3142, SAO 21069), a star in the Henry Draper Catalogue. It is an F5 star located at (J2000.0; 00^h 05^m 05.9499^s +57° 46′ 13.224″)
• HTC HD2, a smartphone manufactured by HTC