CH
- .ch
- Adobe Character Animator
- Bemidji Airlines
- CH (television system)
- CH postcode area
- CH register
- Cargo helicopter
- Carolina Herrera (fashion designer)
- Cassini-Huygens
- Cerebellar hypoplasia
- Cerebellar hypoplasia (non-human)
- Ch (computer programming)
- Ch (digraph)
- Chain (length)
- Chain Home
- Chamorro language
- Championship (dog)
- Chandigarh
- Chaos;Head
- Chapel Hill, North Carolina
- Charlotte Hornets
- Chaudhary
- Chihuahua (state)
- Children's hospital
- China
- Cholesterol
- Chomsky hierarchy
- Christ's Hospital
- Clay
- Clone Hero
- Cluster headache
- CollegeHumor
- Columbia Helicopters
- Companion of Honour
- Confoederatio Helvetica
- Congenital hypothyroidism
- Conservation Halton
- Continuum hypothesis
- Contraction hierarchies
- Curry–Howard correspondence
- French catheter scale
- Guitar Hero
- Heavy cruiser
- Hyperbolic cosine
- ISO 3166-1 alpha-2
- Metres above the Sea (Switzerland)
- Montreal Canadiens
- Television channel