| C&H | Calvin and Hobbs 
| Others |
| C&H | Classic and Historic Motor Club
| Others |
| CH | CA Clipper Header file
| Others |
| CH | Cab Heater
| Others |
| CH | Cabbage Head
| Others |
| CH | Calvin Harris
| Others |
| CH | Cantons de Helvetia (Switzerland)
| Others |
| CH | Captain Hypnosis
| Others |
| CH | Cargo Helicopter
| Others |
| CH | Case Harden
| Others |
| CH | Centre Hice
| Others |
| CH | Cerebellar Hypoplasia
| Others |
| CH | Certified Herbalist
| Others |
| CH | Chamberlain Hall
| Others |
| CH | Champion
| Others |
| CH | Chandigarh
| Union Territory |
| CH | Channel
| Others |
| CH | CHannelized
| Others |
| CH | Channell
| Others |
| CH | Chaplain
| Others |
| CH | Characteristic
| Others |
| CH | Chargeable to Hardware
| Others |
| CH | Chat Hour
| Others |
| CH | Check!
| Others |
| CH | Chicago Operations Office
| Others |
| CH | Chicky Hearn
| Others |
| CH | Chief
| Others |
| CH | Chieti (Provence)
| Others |
| CH | Chihuahua
| Others |
| ch | child, children
| Others |
| CH | Children's House
| Others |
| CH | Chimney
| Others |
| ch | chocolate
| Others |
| CH | Chong Hing
| Others |
| CH | Christian Hartmann
| Others |
| CH | Christian Herman
| Others |
| CH | Christine Hall
| Others |
| CH | Christopher Higgins
| Others |
| CH | CHronic
| Others |
| CH | CHurch or CHapel
| Others |
| CH | Cichlids Haplochromine
| Others |
| CH | Clarity and Harmony
| Others |
| CH | Clays, High Compressibility (LL>50)
| Others |
| CH | Clearing House
| Others |
| CH | Click Here
| Others |
| CH | Clinical Hold
| Others |
| CH | Clinical Hypnotherapist
| Others |
| CH | Clive Hollick
| Others |
| CH | Clock Hours
| Others |
| CH | Club de Hockey
| Others |
| CH | Cluster headache
| Others |
| CH | Coal Heaver
| Others |
| CH | Code Of Hammurabi
| Others |
| CH | CollegeHumor
| Others |
| CH | Colloquial Hebrew
| Others |
| CH | Color Hold
| Others |
| CH | Common Hardware
| Others |
| CH | Companion of Honour [in the UK]
| Others |
| CH | Compare HDLC
| Others |
| CH | Competition Header
| Others |
| CH | Competition Hot
| Others |
| CH | Complementary Health
| Others |
| CH | Component Header
| Others |
| CH | Confederatio Helveticae
| Others |
| CH | Confederation Helvetique
| Others |
| CH | Confederation of Helvetia (Switzerland)
| Others |
| CH | Confederazione Helvetica (Switzerland)
| Others |
| CH | Conference Host
| Others |
| CH | Confoederatio Helvetica
| Others |
| CH | Congenital Hypothyroidism
| Others |
| CH | Conservation and Heritage
| Others |
| CH | Conservation Halton [Ontario, Canada]
| Others |
| CH | Consistent Histories
| Others |
| CH | Constraint Handler
| Others |
| CH | Contact Handled
| Others |
| CH | Contact Hour
| Others |
| CH | Contact Hours
| Others |
| CH | Contingency Hospital
| Others |
| CH | Continuum Hypothesis
| Others |
| CH | Control H
| Others |
| CH | Controlled Humidity
| Others |
| CH | Converse High
| Others |
| CH | Cops Hamburger
| Others |
| CH | Cormorant helicopters
| Others |
| CH | Corneal Hysteresis
| Others |
| CH | Council House
| Others |
| CH | Counter Hit
| Others |
| CH | Course Handicap
| Others |
| CH | Court House
| Others |
| CH | Crackhead
| Others |
| CH | Credit Hours
| Others |
| CH | Crimson Hunters
| Others |
| CH | Critical Hours
| Others |
| CH | Crochet Hook
| Others |
| CH | Cropper Hopper
| Others |
| CH | Crowe Horwath
| Others |
| CH | Cutler-Hammer
| Others |
| CH | Helicopter-carrying Cruiser
| Others |
| CH | OS/2 Configuration file
| Others |
| ch | sites in Switzerland (Confederation of Helvetia)
| Others |
| Ch. | Church
| Others |