Chalk is a type of sedimentary rock, composed predominantly of calcium carbonate.
Chalk may also refer to:
- The Chalk Group, a stratigraphic unit in northwest Europe.
 - The Chalk country, a region of Discworld
 - Blackboard chalk and sidewalk chalk, a material used for writing and art, usually composed of calcium sulfate or calcium carbonate.
 - Chalk (drying agent), magnesium carbonate, used for hands in rock climbing, gymnastics, and weight lifting
 - Chalk, Kent, a village in England
 - Chalk (TV series), a BBC sitcom written by Steven Moffat
 - Chalk (film), a 2006 film by Mike Akel
 - Chalk (military), a group of paratroopers or other soldiers that deploy from a single aircraft
 - Billiard chalk, a silica and corundum compound applied to the tip of a cue
 - French chalk, or talc, magnesium silicate, usually as a powder or in sticks
 
Surname
- Alex Chalk, English Conservative Party politician, Member of Parliament (MP) for Cheltenham since May 2015
 - Alfred Chalk (1874–1954), British footballer
 - Dave Chalk (baseball) (b. 1950), former American Major League baseball player
 - Dave Chalk (entrepreneur), Canadian journalist and broadcaster
 - Garry Chalk (b. 1952), British-born Canadian actor
 - Gary Chalk (b. 1952), English illustrator and model-maker
 - Gerry Chalk (1910–1943), English cricketer
 - Gordon Chalk (1913–1991), Australian politician
 - Marshall Chalk (b. 1981), Australian rugby league player
 - O. Roy Chalk (1907–1995), American entrepreneur
 - Robin Chalk (b. 1981), English actor
 - Roger Chalk, Australian politician
 
See also
- All pages with titles beginning with Chalk
 - All pages with titles containing Chalk
 - Chal (name)
 - Chalke (disambiguation)
 - Chalk's International Airlines
 
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