Schema
The word schema comes from the Greek word  (), which means shape, or more generally, plan. The plural is  (). In English, both schemas and schemata are used as plural forms. Schema may refer to:

Science and technology
 SCHEMA (bioinformatics), an algorithm used in protein engineering
 Schema (genetic algorithms), a set of programs or bit strings that have some genotypic similarity
 Schema.org, a web markup vocabulary
 Schema (logic)
 Axiom schema, in formal logic
 Image schema, a recurring pattern of spatial sensory experience
 Database schema
 XML schema

Other
 Body schema, a neural representation of one's own bodily posture
 Galant Schemata, stock phrases in Galant music
 Schema (Kant), in philosophy 
 Schema (psychology), a mental set or representation
 Schema Records, a jazz record label in Milan, Italy
, a solemn vow of asceticism of a monk in Orthodox monasticism
 Great Schema, the highest degree of Orthodox monasticism
 Schema (fly), a genus of insects

See also
 Scheme (disambiguation)
 Schematic
 Skema (disambiguation)